Feature:1. [Enough Quantity] There are 20 pieces of plastic book rings in the package, which is enough to meet your daily needs about binder rings.2. [Flexible Durable] Made of PE material, the rings are sturdy and durable, will not crack or split, and can be easily opened and closed.3. [Transparent Color] The color is designed transparent, which looks textured and elegant, its available color allows you to have more choices.4. [Practical Useful] The rings are very good tools for students, teachers and office staff, which can be used in their daily study and work, convenient.5. [Widely Used] These rings can be used as fixing rings for cards, notes, and documents, and can also be used for classrooms, offices, and home.Specification:Item Type: Plastic RingsMaterial: PESize: Approx. 3 x 3cm / 1.2 x 1.2in.Package List:20 xPlastic Rings