1.Size : our plastic loose leaf ring have multiple sizes. 2.Various colors provided: 5 different bright colors are available, include blue, red, green, yellow, and transparent color, different colors not only can satisfy your multiple needs, also can help you classify documents according to different colors 3.Package quantity: you will get 100 pieces binder rings in diverse colors, sufficient quantity provide for you to use for a long time 4.Wide application: it is uitable for binders, name cards or note cards, classroom, office, home, also can serve as keychain, for fastening document stack, keys and swatches, our binder rings can be easily applied for office and home storage 5.Durable to use: due to the material of flexible book rings is plastic, which is strong and durable, it will not crack or split, rings open and close easily, ensure your long-lasting usage