20 Sheets:You can get 20 binder rectangular dividers,which are abundant in quantity.Each whiteSmoke divider is reusable and perfect for dividing your own ideal plan.You can choose how many dividers you need according to your needs. Binder Planner Dividers:When you have these loose leaf book dividers,you can plan out several sections in your proposal,which is an ideal way.You can also effectively divide and refer to the content you need. PP Plastic Material:These flat separators are made of transparent pp plastic,and the smooth surface allows gel pens or pencils to write notes on these separators,which are easy to wipe clean.These materials can be waterproof,bringing you great convenience. 11.96x8.7inch:These A4 PP plastic binder dividers are suitable for most binders,with a length of approximately 11.96 inches(30.4cm), a width of approximately 8.7 inches(22.3cm),and a thickness of approximately 0.5mm.The small hole is a small circular hole with a diameter of 5mm. Widely Application:These unique loose leaf notebook dividers can help you store important files,checks,bills,books,and more,making them perfect for school work,homework,and office work.Their uses are very extensive.