![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-i-astro-wanderlust-misty-purple-duo-edition-a4-mycollection-binder-1679583.jpg?v=1791508691&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-i-astro-misty-purple-single-a4-mycollection-binder-5733131.jpg?v=1791508692&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-i-astro-misty-purple-single-a4-mycollection-binder-9204209.jpg?v=1791508693&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-i-wanderlust-misty-purple-single-a4-mycollection-binder-5947396.jpg?v=1791508692&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-i-wanderlust-misty-purple-single-a4-mycollection-binder-3544558.jpg?v=1791508692&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-i-astro-wanderlust-misty-purple-duo-edition-a4-mycollection-binder-8537443.jpg?v=1791508692&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-i-astro-wanderlust-misty-purple-duo-edition-a4-mycollection-binder-9548614.jpg?v=1791508692&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/pre-order-part-iii-astro-wanderlust-misty-purple-duo-edition-a4-mycollection-binder-5619719.jpg?v=1784298918&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/pre-order-part-iii-astro-wanderlust-misty-purple-duo-edition-a4-mycollection-binder-1551661.jpg?v=1784298919&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/pre-order-part-iii-astro-wanderlust-misty-purple-duo-edition-a4-mycollection-binder-2877988.jpg?v=1784298918&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/pre-order-part-iii-astro-wanderlust-misty-purple-duo-edition-a4-mycollection-binder-1113404.jpg?v=1784298918&width=3000)
![[PRE-ORDER] Part I - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/pre-order-part-iii-astro-wanderlust-misty-purple-duo-edition-a4-mycollection-binder-5128932.jpg?v=1784298919&width=3000)
This is a pre-order product that is currently not in stock and will be made to order. The expected delivery date is February 2027. Learn more here.
Discover the ULTBIAS difference
This is a pre-order product that is currently not in stock and will be made to order. As of October 2026, the expected delivery date: Feburary 2027.
Astro & Wanderlust - Part I is where the story begins. In Astro, ever-shifting moon phases trace a new celestial rhythm, guiding the journey forward. In Wanderlust, the bunny once dreaming now takes flight, hope and courage carrying it beyond the familiar. Together, they form a world of soft magic, where discovery feels as meaningful as the destination.
About Duo Edition - A4 myCOLLECTION Binders
The Duo Edition is a 2-in-1 binder system for collectors who want maximum storage space without compromising on utility, protection or design. An ULTBIAS original solution, it comes with two individual custom A4 ring binders stored togeter in one shared outer case. In development for almost two years, the innovative design improves the overall management of larger collections by making it easier to access, organize and browse.
The Duo Edition is one of three sizes available in our Custom A4 myCOLLECTION Binder range. It offers the most photocard storage and can fit a total of x90 single-sided sheets of our Custom A4 9-Pocket Photocard Pages, which holds up to 810 photocards across both binders.
Each custom A4 4-D ring binder included is constructed with tough premium board core and equipped with a dual magnet clasp. This enclosure keeps the contents safe and gives the binder its signature box-like structure to ensure it can be stored standing without collapsing. The protective Binder Shield™ prevents pages from sagging when stored upright, supported by custom-engineered reinforced rings that can withstand up to 2kg of weight. Designed for everyday handling, the spine eyelet together with the ventilated holes on the outer case makes it effortless to quickly access and shelf your binder in one quick wobble-free motion.
With no fixed pages, tailor your binder to fit the exact needs of your collection with the flexibility to adapt and change your set up at any time. For the best fit and alignment, choose our archival-safe Custom A4 Pocket Pages.
Care Note
To preserve our myCOLLECTION binders, store away from direct sunlight in a cool, dark space.
![[PRE-ORDER] Part I - Astro - Misty Purple - Single - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-i-astro-misty-purple-single-a4-mycollection-binder-1933476.jpg?v=1791508692&width=3000)
![[PRE-ORDER] Part I - Wanderlust - Misty Purple - Single - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-i-wanderlust-misty-purple-single-a4-mycollection-binder-5167124.jpg?v=1791508691&width=3000)
![[PRE-ORDER] Part II - Astro - Misty Purple - Single - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-ii-astro-misty-purple-single-a4-mycollection-binder-3748091.jpg?v=1791508692&width=3000)
![[PRE-ORDER] Part II - Astro + Wanderlust - Misty Purple Duo Edition - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-ii-astro-wanderlust-misty-purple-duo-edition-a4-mycollection-binder-2152135.jpg?v=1791508630&width=3000)
![[PRE-ORDER] Part II - Wanderlust - Misty Purple - Single - A4 myCOLLECTION Binder](http://ultbias.com/cdn/shop/files/world-pre-order-part-ii-wanderlust-misty-purple-single-a4-mycollection-binder-4667737.jpg?v=1791508691&width=3000)
"I’m a novice collector that let a lot of my postcards and photo cards pile up in some box, but keep them in these binders are the best decision/purchase I’ve made. The binders a beautiful and they’re excellent quality, I no longer worry about my collection being damaged in the box I kept them in anymore. I just love to flip through them! Would recommend these binders to anyone who loves to collect!"
Natalee F.
From the outer case right through to the packaging, we're serious about craftsmanship and exclusively use premium, high-quality materials at every step of the process to deliver on our promise of offering the very best with our myCOLLECTION binders.
In development for almost two years, behind every little detail of the myCOLLECTION binder lives meticulous attention to thoughtful and utilitarian design, an enhancing and distinctive experience that's made our binders coveted by collectors worlwide.
Our binders are optimized at every level to offer maximum storage capacity without compromsing on protection. From the custom-engineered reinforced binder rings to our protective Binder Shield mechanism, we've thought beyond simply storage and have built long-term protection right into the design.
Opting for Pantone Sun-Ink and UV Resistant printing in combination with our exclusive Kosmic Paper™, the beautiful finish of the myCOLLECTION binder literally stands out from the crowd with depth and vibrancy that sets it apart from ordinary PU or plastic coverings.
Completed
Add-on Custom A4 Pocket Pages to your binder pre-order and save 20% off each pack of pages.
*A pre-order binder must be added to your cart first to successfully redeem the offer on the pocket pages. Discount automatically applied at check-out.
![(World) [PRE-ORDER] Custom A4 1-Pocket Pages](http://ultbias.com/cdn/shop/files/2000_2000_A4_A5_CleanUp_Square_JPG_Shopify_Hero_A4_1_Pocket_Page.jpg?v=1772693992&width=3218)
![(World) [PRE-ORDER] Custom A4 2-Pocket Pages](http://ultbias.com/cdn/shop/files/2000_2000_A4_A5_CleanUp_Square_JPG_Shopify_Hero_A4_2_Pocket_Page.jpg?v=1772693994&width=3218)
![[PRE-ORDER] Custom A4 2-Pocket Pages - Prism Platinum](http://ultbias.com/cdn/shop/files/world-pre-order-custom-a4-2-pocket-pages-7507840.jpg?v=1772864349&width=1500)
![[PRE-ORDER] Custom A4 3-Pocket Pages - Prism Platinum](http://ultbias.com/cdn/shop/files/world-pre-order-custom-a4-3-pocket-pages-8835440.jpg?v=1772864349&width=3855)
![[PRE-ORDER] Custom A4 3-Pocket Pages - Prism Platinum](http://ultbias.com/cdn/shop/files/world-pre-order-custom-a4-3-pocket-pages-3296031.jpg?v=1772864349&width=3567)
![(World) [PRE-ORDER] Custom A4 4-Pocket Pages](http://ultbias.com/cdn/shop/files/2000_2000_A4_A5_CleanUp_Square_JPG_Shopify_Hero_A4_4_Pocket_Page.jpg?v=1772693996&width=3218)
![[PRE-ORDER] Custom A4 4-Pocket Pages - Prism Platinum](http://ultbias.com/cdn/shop/files/world-pre-order-custom-a4-4-pocket-pages-4433454.jpg?v=1772864349&width=1500)
![(World) [PRE-ORDER] Custom A4 6 Pocket Pages - Horizontal](http://ultbias.com/cdn/shop/files/2000_2000_A4_A5_CleanUp_Square_JPG_Shopify_Hero_A4_6_Pocket_Page_Horizonal.jpg?v=1772693997&width=3218)
![[PRE-ORDER] Custom A4 6 Pocket Pages - H - Prism Platinum](http://ultbias.com/cdn/shop/files/world-pre-order-custom-a4-6-pocket-pages-horizontal-1482657.jpg?v=1772864348&width=1500)
![(World) [PRE-ORDER] Custom A4 6 Pocket Pages - Vertical](http://ultbias.com/cdn/shop/files/2000_2000_A4_A5_CleanUp_Square_JPG_Shopify_Hero_A4_6_Pocket_Page_Vertical.jpg?v=1772693999&width=3218)
![[PRE-ORDER] Custom A4 6 Pocket Pages - V - Prism Platinum](http://ultbias.com/cdn/shop/files/world-pre-order-custom-a4-6-pocket-pages-vertical-7394783.jpg?v=1772864349&width=1500)
![(World) [PRE-ORDER] Custom A4 8-Pocket Pages](http://ultbias.com/cdn/shop/files/2000_2000_A4_A5_CleanUp_Square_JPG_Shopify_Hero_A4_8_Pocket_Page.jpg?v=1772694000&width=3218)
![[PRE-ORDER] Custom A4 8-Pocket Pages - Prism Platinum](http://ultbias.com/cdn/shop/files/world-pre-order-custom-a4-8-pocket-pages-2861296.jpg?v=1772864349&width=1500)
![(World) [PRE-ORDER] Custom A4 9-Pocket Pages – V3 – Outer Size](http://ultbias.com/cdn/shop/files/2000_2000_A4_A5_CleanUp_Square_JPG_Shopify_Hero_A4_9_Pocket_Pages_V3_Double_Sleeve.jpg?v=1772694001&width=3218)
![[PRE-ORDER] Custom A4 9-Pocket Pages – V3 – K-Pop Double-Sleeve - Prism Platinum](http://ultbias.com/cdn/shop/files/world-pre-order-custom-a4-9-pocket-pages-v3-outer-size-1084387.jpg?v=1772864350&width=1500)
![(World) [PRE-ORDER] Custom A4 9-Pocket Pages – V4 – Standard Fit](http://ultbias.com/cdn/shop/files/2000_2000_A4_A5_CleanUp_Square_JPG_Shopify_Hero_A4_9_Pocket_Pages_V4_Standard_Fit.jpg?v=1772694003&width=3218)
![[PRE-ORDER] Custom A4 9-Pocket Pages – V4 – Standard Fit - Prism Platinum](http://ultbias.com/cdn/shop/files/world-pre-order-custom-a4-9-pocket-pages-v4-standard-fit-7913657.jpg?v=1772864350&width=1500)
![(World) [PRE-ORDER] Custom A4 10-Pocket Pages](http://ultbias.com/cdn/shop/files/2000_2000_A4_A5_CleanUp_Square_JPG_Shopify_Hero_A4_10_Pocket_Page.jpg?v=1772694005&width=3218)
![[PRE-ORDER] Custom A4 10-Pocket Pages - Prism Platinum](http://ultbias.com/cdn/shop/files/world-pre-order-custom-a4-10-pocket-pages-5541985.jpg?v=1772864347&width=1500)
Overall rating: 5.0 / 5 from 56 reviews.
Comes with all the additions shown in the video and te dust proof case works very well to keep my pcs and pages dust free. Is very high quality product, been using for a month now! Highly recommend! Espicially if you want to upgrde your collection! Very functional! + cute design!
[PRE-ORDER] Part I - Astro + Wanderlust - Dream Duo Edition - A4 myCOLLECTION Binder
I love it, it is so beautiful and fits a lot, I did find out that I have a lot more inclusions then I thought so I will have to buy another album but I will buy it here for sure
Part I - Astro + Wanderlust - Midnight Duo Edition - A4 myCOLLECTION Binder
![Customer photo review of [PRE-ORDER] Part I - Astro + Wanderlust - Midnight Duo Edition - A4 myCOLLECTION Binder](http://images.loox.io/uploads/2026/3/13/RwpF3IMVf_mid.jpg)
I’m a huge fan of Ultbias binders! Really the best ❤️
[PRE-ORDER] Part I - Astro + Wanderlust - Midnight Duo Edition - A4 myCOLLECTION Binder
The albums are beautiful and very sturdy! I may move my some of my A5 Prism Platinum collections to this beautiful A4 binder, Cathy! :)
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
This is seriously an amazing design - I love how pretty it looks in my space, and how sturdy it is on top of the look!
first off the ONLY reason I rate this as 4 stars instead of 5 is because its so big! So much bigger than I thought it would be and doesn't fit on any shelves I have. The one it's sitting on has nothing above it so there is space. However with that being said I still absolutely love this, it's my first ever duo binder and it looks absolutely stunning in person and the quality feels amazing and it feels STURDY in or outside of the outer box. I don't feel any worry when it comes to my pcs because I'm very confident that they're safe. The holo designs and the little cut outs are such a cute little touch. Definitely love this binder for sure, I just wish it was a tad shorter in height. <3 Still recommend tho!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
its gooood
Originally ordered a single binder as you can see but loved it so much I absolutely had to get the double pack as I expanded my collection!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
Really love the design. I’ll be ordering the black binder as well.
I love these binders and I can't wait for more designs and colors to come out in the future and I love the slip covers
Another wonderful purchase that I am in love with!! I keep coming back. This was my 5th Binder purchase from Prism Platinum! And I will.be back for more!
These are absolutely beautiful and so well made! They hold so many pages without damaging anything or bending and warping the pages. My favorite binders I own!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
The quality is truly amazing! I own the black and the white duos, and I can’t wait until they release in more colors because I want to put my entire collection in these!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
I had been seeing ads for this binder all over Instagram for quite some time now, and I'm so glad I finally decided to purchase. I was a bit concerned about this binder being made of cardboard since I've only used plastic binders in the past, but the quality is so amazing. It's super thick and sturdy and I'm not worried about my pcs getting damaged at all. I love the inclusion of the backboards and binder shield.
The binders are BEAUTIFUL!! I love them sm
Fantastic quality as always
Astro + Wanderlust - Dream Duo Edition - A4 myCOLLECTION Binder
I have so many of these binders now and they’ve been my favorite. I’m going to stick to them now and in the future. They’re sturdy and just physically beautiful on display. A great way to keep your collection safe.
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
These are so pretty, very sturdy, and look so great on my shelves!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
I’m a novice collector that let a lot of my postcards and photo cards pile up in some box, but keep them in these binders are the best decision/purchase I’ve made. The binders a beautiful and they’re excellent quality, I no longer worry about my collection being damaged in the box I kept them in anymore. I just love to flip through them! Would recommend these binders to anyone who loves to collect!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
The attention to detail on these binders is fabulous. Well worth the money!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
I can't get over how beautiful these look on my shelf!
I ordered a couple of these to help with my ever-growing collection, and they are absolutely beautiful. I hope to buy more in the future!
I love my new binders a bit big for my shelf but I knew that before hand. I was able to fit so much into them. I have them laying sideways nothing has gotten damaged and it's so easy to pull the binder out with out movi g anything else out of the way
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
LOVE these binders. they’re big enough to fit all the inclusions i want, so im using them for my ot8 ateez and skz collections! gonna be buying more to fit everything i have!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
I love this! It’s so nice and durable. Highly recommend. Perfect for my Ateez collection❤️❤️
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
Not normally an A4 binder girly, but I bought these to sort out my bigger and obscurely sized inclusions and I’m loving it
Beautiful box and binders! Exactly what I’ve been looking for!
I LOOOOVE these binders. The white or black choices can fit into any aesthetic really. I got these to house my Hueningkai collection, as it already outgrew my single A5 binder. :') The binders are just gorgeous, sturdy, and makes me enjoy my collection more. They are pricey, but they will last. I think it will be a good investment for anyone serious about pc collecting. :)
I love love love this binder set. Pictures don’t do it justice… it is so beautiful in person. It is bigger than I thought (in a great way) and I am so excited to have it for my collection.
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
LOVE THESE! they are beautiful! i've got quite a few A5 binders from PP and the quality is truly unmatched.. i'm so happy they've carried that quality over to their A4 collection too! :)
I love this set! I’m so glad that there’s an A4 version. The binders are well made and sturdy. I love the design, and would like it even more if the pages were included!
The duo binder is gorgeous and I lov the holographic designs. I’ve only ever used A5 binders and I’m pleasantly surprised at how much this A4 binder holds in comparison. Now I want the white version too lol.
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
I wanted this binder duo for so long! I still have to get more pages but I truly am impressed with the quality and durability of the binders and the pages already! I have over 1000 PCs in my collection and it will make a nice home for all of them!
Open a luxurious box to find these luxurious binders housing your collection!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
The Packaging it comes in is also top tier!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
Very sturdy and heavy; truly a heavy-duty binder combo for your precious photocards. I love that it's completely sealed off from the elements due to the holder/ case for the binders. I love the binder shield so much; keeps my pages upright! And the backboards are truly appreciated. My only complaint is that it was mentioned on Instagram that the binder can hold 55 pages; and I believe I was only able to fit in 25 - 30 pages maximum. Is it because of my double-sleeved photocards? So now I have a lot of extra pages and both binders are completely full now; so was really hoping I could fit in 55 pages each to hold a larger part of my collection.
Absolutely love these binders! Much bigger than I thought. For some reason in my mind, I thought that they’d be similar to a standard 1-inch school binder but these are more like 2.5-inch binders and these are SO MUCH sturdier. The covers are much thicker than standard binders and the quality is amazing. The details are stunning and I love how the designs connect no matter how you place them. I also bought it in black and I swapped the colors and the designs still connect! I wouldn’t call myself a collector, I just wanted to display the things I’ve received from the few albums I have, and these were so worth it.
So so so obsessed. I’ve always been an A4 binder girl just as I have a bigger collection. I finally decided to take the plunge and get this beast of a binder. I totally have no regrets. It’s a beautiful home for my beautiful photocards. The binder is bigger than a standard A4 that you would have at a store and the four inner rings just bring much peace to my mind especially with the backboards. Thank you for such an amazing product!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
these binders are even more incredible in person and i can’t believe i’ve finally got my hands on them!
Duo Edition – Astro + Wanderlust – Version 1 – Midnight Black
i’ve waited since the last restock of these duo binders since a year or two ago and am so happy i got my hands on both different versions!
