The mini 3 ring cover is made of PVC material, transparent, simple and elegant. The is made of stainless steel Portable---'s mini clear 3-ring 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 out The mini loose-leaf book adopts three-ring design, which is very flexible and convenient Package includes 4 Covers (/Purple/Green/Black) + 4 Packs of Grid inner Paper (80 Sheets/Set) + 12 Bags,3 Packs/Set This mini notebook is small in size, suitable for , takes up little space, can be carried anywhere, and can be used as a gift for children, , relatives, colleagues, etc. Material: pvc colour: mixed color Package Contents: 4 x Covers (/Purple/Green/Black) 4 x Grid inner Paper (80 Sheets/Set) 12 x Bags(3 Packs/Set) Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.