Material: ABS + ceramic grinding core Size: 22.55cm Weight: 300g Features: high quality ceramic grinding core, resistant to wear and corrosion. The thickness can be adjusted by turning the bottom button. Scope of application: Grinding small particles such as black pepper, white pepper, and coarse salt. Grinding principle and precautions for use: 1. The grinding particles should be less than 8 mm. Since the maximum distance of the grinding card is 8 mm, please break the particles more than 8 mm and grind them. 2. It is recommended to stir the pan before grinding the pepper. The pepper grinding after a little frying will be more delicious. 3. It is not recommended to wash with water because the grinder is not coated with waterproof paint (more healthy). The exterior can be washed with a wet rag and the inside of the core can be cleaned by grinding the rice. note: The grinder is not full of spices. You are free to choose condiments to add fun to your life. packing list: 1 pepper