Package:50pcs Plastic Loose Leaf Binder Rings Multicolor Binder Rings Material:plastic Size:approx 20mm/0.8inch in inner diameter Assorted color and will be send in random Made of premium material, high quality, sturdy and durable, easy to open and close for long-lasting usage. Plastic book rings are ideal for loose-leaf,notebooks key rings,scrapbook,curtain pole ring and etc on any occasion,like school,office,classroom,home. Easy to use,find the seam on the book ring, use your fingers to pull them open apart and squeeze to close.Well for loose-leaf, memo filing, key rings, scrapbook, binding recipe, photos, book, sample book, scrapbook, curtain pole ring and etc.