[PRE-SALE] Part I - Astro - Midnight - Single - A4 myCOLLECTION Binder
Astro & Wanderlust | The illuminating planetary graphics, the dazzling rainbow holographic foil. Instantly recognizable and sold-out with every restock, the endlessly dreamy world of Astro & Wanderlust has inspired collectors since its introduction in 2024.
The Single - Custom A4 myCOLLECTION Binder fits up to x45 single-sided sheets of our Custom A4 9-Pocket Photocard Pages, which can hold up to 405 kpop photocards in total.
Sale price$69.95Regular price(/)
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Description
This product is available for pre-sale and is currently on the way to our warehouse. The estimated delivery date is 23 October 2026.
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 Single - A4 myCOLLECTION Binder
The Single size is one of three sizes available in the Custom A4 myCOLLECTION Binder range. It is the smallest in size and can fit up to x45 single-sided sheets of our Custom A4 9-Pocket Photocard Pages, which holds up to 405 photocards in total.
The custom A4 4-D ring binder is constructed with tough premium board core equipped with a dual magnet clasp. The 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 from our archival-safe Custom A4 Pocket Pages.
Care Note
To preserve our myCOLLECTION binders, store away from direct sunlight in a cool, dark space.
Key Features
Original Artist-Illustrated Designs: No AI-generated designs. All artwork featured on our binders supports artist-original designs.
Built for Every Collection: Unlike zip binders and collectbooks, our ring binders offer true flexibility with no fixed pages to ensure you can tailor storage to fit the exact needs of your kpop collection.
Sturdy and Structurally Sound: Crafted using thick rigid premium greyboard exclusively sourced from Taiwan. While ordinary binders bend and warp under pressure, our binders remain perfectly rigid.
Strong Clasp Closure: The dual system ensures your binder snaps securely shut every time and gives the binder it's stable, signature box-like shape so it won't collapse when stored standing.
Tough & Resilient Rings: Fitted with custom-engineered reinforced rings with a weight tolerance of 2KG, designed to remain aligned and resilient over long-term use.
Binder Shield™ Protection: Exclusively developed for ULTBIAS, the metal mechanism locks your pages in place to prevent sag and drag when storing your binder upright.
Ventilation Holes for Easy Handling: Paired with the spine eyelet, thecustom openings make it effortless to quickly access and shelf your binder in one quick wobble-free motion.
Page Protection with Backboards: Our slim yet backboards placed at the front and back of the binder rings shields pages from scratches/dents.
Premium Outer Case: Solid and opaque case that keeps light, dust and accidental knocks at bay keeping your collection extra protected.
Ready for Organization Upon Opening: A set of thick full-page Index Tabs help with sorting and categorising pages in your binder.
Tested for Long-Term Use: Developed by fellow collectors, our binders have been tested rigourously to deliver long-term protection across years of daily use.
Specification
Binder Dimensions: 11.8 x 13.8 x 5.5 in (300 x 350 x 64 mm)
Binder Ring Type: Custom Silver 4-D Rings
Binder Page Compatibility: ULTBIAS Custom A4 Pocket Pages measuring 9.5 x 12.6 in (242 x 319 mm)
Total Storage Capacity: Up to x45 sheets of ULTBIAS Custom A4 9-Pocket Pages (Single-Sided)
Outer Case Dimensions: 305 x 360 x 74 mm (12 x 14 x 3 in)
Packaging Dimensions: 13 x 15.2 x 2.5 in (330 x 385 x 90 mm)
Total Weight: 2.5 KG
What's Included
1x Part I - Astro - Midnight Black - Single - A4 myCOLLECTION Binder
1x Dust-Proof Outer Case (Black Midnight)
1x Binder Shield™
1x Full Backboard (Frosted Matte)
1x Half-Backboard (Frosted Matte)
1x Set of Index Tabs (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!"
★★★★★
Natalee F.
Why myCOLLECTION is made like no other
Made to safely hold more
Big collections shouldn’t require making big compromises. Our Single A4 binder has been carefully sized to fit up to 405 photocards while staying sturdy, protective and easy to use, so you get the most storage possible without it becoming too heavy to handle or flimsy to trust.
Made to fit everything
From posters to sticker sheets, kpop collections go well beyond photocards. Unlike zip binders or collect books, our binders have no fixed pages to give you true flexibility to store and organize everything your collection may include. With over ten available Custom A4 Pocket Pages to choose from, there's a home for every odd inclusion.
Made for lasting protection
Generic office folders weren’t made for collecting. Our binders are engineered inside out for complete long-term protection, beginning with premium materials and finishing with our protective binder accessories included with every binder.
Find Your Perfect Binder
Single Vs Duo Edition
Available in two signature sizes: Single and Duo Edition.
i moved my le sserafim collection from A5 to A4 and i LOVE it. if you collect album + non album for any group and have been thinking about switching, do it!! it makes organizing so much easier. my A5 was stuffed but there is still room for growth in the A4. i enjoy how solid the binder is and the design is cute but sleek. only downside is that the binder hangs off of my shelf and takes up a lot of space when open on my smaller sized desk. if you're working with a small area that is something to take into consideration.
I waited for the Astro White to come back in stock because my collection grew & I needed a new binder. I wanted it to compliment my black one & I love the way they look side by side! I couldn’t be happier!!
To start with, yes this is a ot of money for a binder, but I've had it for about a month now and I have no regrets. I really have not seen anything else available that compares to this and given it is a bit of a niche premium product I can see why it costs this much.
It looks really pretty with the holo, and the astro design works particularly well I think for a SHINee collection. I really like that it's very minimal in terms of the branding.
I use this mainly for my postcards and other items, so the majority of things in here aren't sleeved, but I have put some things in back to back which works fine. There are 49 pages in here, a few are still empty, but I could still add a few more when needed. The binder shield works well to keep everything in place, although the pages tend to puff out a bit as it's not full, I'm not too concerned.
It is big and quite heavy, and sometimes a little bit of an effort to get it back into the case, but I love that the case means it stands up on its own and it also protects it.
The foam-lined box that it came in is also very sturdy and is handy for storing things too.
Overall I'm really happy with this purchase and would definitely buy a second one if there's a similar design available when I need it.
I am so in love with the intricate decals and the premium quality of the binder. Ngl, it’s a little heavy and not great if you wanna bring it around to flex. But prefect if you are looking to store it at home in a nice comfortable spot. Material is great but dents a little easily so ensure you place it on a flat surface when you are binding your pcs!
Beautifully constructed and you can really feel the quality. The included front and back protective boards and binder protector are consciously designed and gives the option of storing the binder upright without the insides sagging. Though the price may get you to second guess a purchase, I think it's worth it!
The new black A4 binder is absolutely beautiful!! The holographic design and the thick quality of the binder is everything I need to house my OT7 BTS inclusions. I love that the binder has its own protection box and the holds up perfectly vertical. 10/10
These binders are both beautiful and functional. They’re sturdy (I’ve dropped one a few times by accident) and have a lock on the rings to secure the pages. I use it quite a lot to make sure my card pages aren’t flopping around. I can imagine myself having a shelf full of them. I hope they come out with more designs to continue the spine art.
Absolutely love it! It arrived in extremely protective packaging and was amazing to unbox. Definitely love the ability to stand the binder upright without damaging the contents of the binder.
I am absolutely in love with my Astro binder!! It’s beautiful! I love that I have so much space to display all my PCs and signed postcards. Thank you Prism Platinum!
Exactly as advertised, packed so safely for shipping, so beautiful it's going to look great displaying my collection. feel safe knowing my pcs are safe and sound in thete
I love this binder! This is my second one of these after upgrading to the A5 size and the quality is amazing. They also look great on my shelves with the holographic accents. I love how even though the designs aren't exactly alike, they flow together on the spines of the binders. Such a cute detail!
This binder is so deluxe down to the great packaging! It’s beautiful and sturdy and the accessories it comes with makes everything that much more stable! I absolutely love it!
Genuinely love this binder so much! Fits my collection perfectly and the cards look so clear! The design is gorgeous and I’ve had so many friends ask where they can get one for their collections! Will definitely buy another one soon 🤍🖤