The mini 3 ring binder cover is made of PVC material, transparent, simple and elegant. The binder is made of stainless steelPortable---Binder's mini clear 3-ring binder is about 18.5cm long and 10cm wide, compact and portable, put it in your pocket, you can take it with you in class or when you go outThe mini loose-leaf book adopts three-ring design, which is very flexible and convenientPackage includes 4 Binder Covers (Pink/Purple/Green/Black) + 4 Packs of Grid inner Paper (80 Sheets/Set) + 12 Binder Bags,3 Packs/SetThis mini notebook is small in size, suitable for all occasions, takes up little space, can be carried anywhere, and can be used as a gift for children, friends, relatives, colleagues, etc.Material: pvccolour: mixed colorPackage Contents:4 x Binder Covers (Pink/Purple/Green/Black)4 x Grid inner Paper (80 Sheets/Set) 12 x Binder Bags(3 Packs/Set)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.