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👜 Organize like a pro, carry like a boss.
The Case-it King Sized Zip Tab Binder is a premium, durable organizer featuring oversized 4-inch D-rings that hold up to 800 sheets. Designed with a 5-subject expanding file and multiple storage pockets, it keeps your documents and supplies impeccably sorted. Made from ripstop nylon to prevent tears, it offers both resilience and convenience with a gusseted zipper, handle, and shoulder strap—perfect for professionals and students who demand style and function on the go.












| ASIN | B0B36JB1ZT |
| Best Sellers Rank | #26,455 in Office Products ( See Top 100 in Office Products ) #43 in Portfolio & Case Ring Binders |
| Binder Ring Type | O-Ring |
| Brand | Case it |
| Brand Name | Case it |
| Capacity | 800 Pages |
| Color | A Jet Black |
| Customer Reviews | 4.3 out of 5 stars 1,257 Reviews |
| Hole Count | 3 |
| Item Dimensions L x W | 13.5"L x 13.5"W |
| Item Type Name | Binders |
| Item Weight | 2 Pounds |
| Manufacturer | CASE IT |
| Manufacturer Part Number | D-186-JBK |
| Material | Nylon |
| Material Type | Nylon |
| Model Number | D-186-JBK |
| Number of Dividers | 5 |
| Number of Pieces | 1 |
| Paper Size | Letter |
| Product Dimensions | 13.5"L x 13.5"W |
| Sheet Size | Letter |
| Supported Paper Sizes | Letter (8.5 x 11 inches) |
| UPC | 022293117340 |
| Unit Count | 1.0 Count |
M**A
Spacious and durable school binder.
Stay organized all year long!. I purchased the Case-it King Sized Zip Tab Zipper Binder for school, and it’s fantastic. The 4-inch D-rings hold a lot of papers—up to 800 sheets—so it’s perfect for multiple subjects. The zipper closure keeps everything secure, and the tabs make organizing easy. The binder feels sturdy and durable, and it’s large enough to handle all my notes and assignments. Highly recommend for students who need extra storage.
F**4
Great for organized-challenged students - avoid or minimize storing books inside
UPDATE: this lasted my son all school year. My son is pretty rough with his things (we sometimes go through 3 pairs of good-quality shoes in a school year). I used hot glue (warm temp) to permanently seal both ends of the easy-access zipper since it it started to give way after a few months’ use. This has been a huge help for my unorganized, middle-school student. He started a magnet program this year, & they’re not allowed to carry book bags to class. Fellow higher-grade parents recommended this brand, & I chose the largest option I could find. It holds up well, even with one hardback or two paperback text books inside. When held by the handle, the books’ weight pushes down against the zipper for quick access & the other main open/closure zipper. We learned that the previously mentioned book quantity is the ideal maximum. We’d purchased one before this, & the quick-access zipper couldn’t withstand the weight of 2 hardcover & 1 softcover books. Despite its cost, it was worth it for us to try again & decrease the weight inside, which has worked well. We are able to fit 3 subjects’ needs in the Case-It. That’s about 15 dividers, a softcover textbook, three two-pocket folders, papers & an additional zippered pencil pouch. It has a built-in zipper pouch that is standard size & works great, but we have too many supplies among the 3 classes to fit them all in the included pouch. Additional organization tips….. Add modified (or rounded-edge) 3-hole, 2 pocket folders to separate subjects instead of buying extended-tab dividers. It’s a little tricky to fit folders inside due to the width of the Case-It & the zipper rubbing against the folder when opened & closed. I cut off the corners of the folders & then wrapped the area with heavy packing tape so they don’t split over time. They’ve held out well. I used a white-out pen on the inside of the folder to write reminders such as my son’s student & locker #. On a notebook paper, I used different color markers to write reminders of the things that need to stay in his case-it. I put it in a page protector & placed it at the front of the 3-ring. I bought a retractable badge holder & zip-tied his thumb drive to it. I clipped the badge holder to the section behind the inside zipper pouch.
P**S
Large TCG collection looking to make trades at a con or LGS? This is it, you want this.
Pikemon, One Piece, DBZ, MTG whatever your trading card desires are, this beauty is big and holds a ton of pages. By far the largest zip up D-ring I've seen AND THERES A BONUS!!!! I have had 0 problems catching corners of pages and such in the zipper (a common problem for zip up binders when using ultra-pro card pages). Now I'm not saying its the best in the world, theres binder etiquette to think about. I still wouldn't stack anything on top of it, and I probably wouldn't stand it up and the edges seem to be a little bendy under weight (mind you I have an entire collection of rares ranging from Invasion to FF stuffed in this 1 binder). Quality seems ok for us adult users using it as card binder, but I can see what the other reviews are talking about when they say their kid goes through em... I wouldn't trust a sharp number 2 pencil in it if I was using it for school, but for us players and collectors this is a great way to haul around a bulk at conventions and LGS's... And it's really not that expensive IMO.
D**L
Two per school year
My kids use about two of these per school year. The zippers tend to rip out ats some point from having 5" worth of papers in a 3" wide binder. Fair price and if it wasn't used by 9-13 year olds, it would last a lot longer.
S**R
Sturdy so far!
So far works well! Other Amazon brand fell apart halfway through the school year!
G**A
Arrived on time
Nice product, came on time
A**J
Horribly made!
I would leave 0 stars if I could. The zipper came out of alignment after just over a month. The netting had holes in it within 1 week of use. And the binder never closed easily when dividers with tabs were included. This was a big waste of money and now I can’t get a refund because we are 1 week out of the return window.
R**A
4 in 3 ring binder
Quality zipper 3 ring binder. They are excellent to hold my genealogy documents. Sturdy, heavy duty and expect it to last years.
A**K
Good quality
I would have to say it’s a little expensive for this binder but the binder is really good quality. I use it for my seat storage and I find that the quality of both the rings inside and the binder itself are very good I would absolutely recommend like I said, it’s just a little pricey.
M**O
Buen producto
Muy grande, buena calidad, distintos compartimentos, satisfecha en relación calidad-precio.
A**E
awesome folder!
quick delivery, great fit and worked as implied
M**K
Carpeta con mucho espacio
Es una carpeta con mucho espacio, puedes colocar mas documentos dentro sin dejarlos expuestos en el exterior como otras carpetas, excelente producto.
C**E
Perfect for sons groaning Pokémon card collection
Lots of room, build in pocket folder to keep extra pages. Labels, etc. tons of room for pages makes it easy for my son to open and close without pages falling out. Zip closed with shoulder strap is also a handy feature. Same day delivery 👍🏼 delivered to my next door neighbour though
Trustpilot
4 days ago
2 weeks ago