Frequently bought together:
Description
1. Material: rubber
2. Weight: about 11g/piece for small size, about 18g/piece for large size
3. Size: small size is about 1.7x3.7 cm, large size is about 1.8x5 cm
4. Quantity: 30 pieces/box
5. Features: soft material, moderate hardness, wipe clean, do not hurt the paper, and feel comfortable