They are index Binder Dividers. and safe plastic material withstands long-term use. Transparent colors for a stylish look. Binder Dividers can for loose-leaf binder notebook notepad. It is a great for your families and friends. Features -Color:Assorted Color -Material:Plastic -Size:21.00X15.90X0.10cm/8.25X6.25X0.04in -The Binder Divider is manufactured with premium materials, and practical enough to use -Designed with workmanship, these binder dividers are beautiful and distinctive -Can be used on books, , report, presentations, journal, diary and hardcover notebooks -Fine details, the binder divider can separate documents and notebooks clearly to help quickly find the content -Creative and clear design is easy to catch your eyes for quick reference, saving your time Package list: 80 x Binder Dividers