Product Characteristics Our binder rings can be easily applied for office and home storage and will be your best choice! ❤Wide application: It is suitable for binders, name cards or note cards, also can serve as keychain, ideal for fastening document stack, keys and swatches, etc. ❤Can be used in various occasions: classroom, office, home, etc. ❤Warm reminder: It is recommended that the binding thickness does not exceed 28mm, and it can bind about 250 sheets of printing paper. Product Information ◆Product Name: Loose-Leaf Ring ◆Product Material: Plastic ◆Product Color: Red, Yellow, Orange, Green, Blue, Purple, Pink ◆Product Size: Inner diameter 28mm ◆Product Weight: 130g (100 pieces)