1. Material: wooden 2. Weight: about 122 grams for small size, about 261 grams for large size 3. Size: Small size is about 12.5x5 cm, large size is about 20.5x5.5 cm 4. Purpose: coarse and fine grinding of pepper, pepper, sesame, etc. 5. Features: comfortable hand feeling, adjustable thickness, ceramic grinding core, healthy material, safe and harmless, good sealing, high hardness, sturdiness and durability, not easy to rust, diverse uses, large capacity