Size and Quantity: Our A4 3 ring binder dividers are 23.7cm in width 27.8cm in length 4mm in thickness with a 7.8mm aperture 5 sheets/ set 2 sets 10 sheets in total. Plastic Material: Our divider sheets are made of high quality PP plastic strong and thick suitable divider paper with 5 tabs for 3-ring binders for long term use. 1 Blank Tab: Each A4 index binder dividers comes in 5 colors each sheet with 1 label for your marking the surface of the product is smooth and exquisite workmanship you can use it with confidence. 3 Holes: Our 3-hole ring index tab paper is suitable for 3 ring binders and the 3 holes design is simple and practical. It can make your notebooks neat and orderly beautiful and generous. Easy to Use: Simply open the ring binder of the A4 size and pass through the hole in the vertical tabs page which can be easily fitted into the ring binder. And the eye-catching color will covenient for your find.