Sooez plastic 3 hole punch binder envelopes are the perfect additions to your standard binder. The misplacement button closure don't stack up when you put folders in a binder. Organize and store your essays, drawings, projects, loose papers and forms without hassle or cramming. Product Features: Space Saving: Common folder buttons are in the same position, they will stack up when you put them in a binder. That doesn't happen with our left, middle, right tightly buttons, which saves a lot of space. Hook & loop closure is super secure and easy. Superior Quality: Made from super heavyweight plastic, sturdy and durable, provide better protection for your files. Sufficient Capacity: It has enough capacity to hold 50 sheets of paper. Stay Organized: The binder folders can be used at school, office, home and business trip. Organize and store your papers, mail, maps, menus, warranties, receipts, crafts, invoices, and more. Keep everything around you in order. Product Specifications: Material: Durable acid-free polypropylene Quantity: 12Pcs translucent binder pockets Size: 11.6 x 9 inches, standard letter size. Capacity: 50 sheets of paper Easy to Stack and Carry Designed with a hook and loop closure, can be stacked neatly for saving space Superior Quality It is made of durable plastic and is sturdy enough to withstand multiple uses. It can provide better protection for your files. Easy Find Out The translucent folder makes the interior clearly visible, making it very easy to find the file without opening the envelope.