Features: It is made of high quality food grade 304 stainless steel with high hardness, durability and wear resistance. Clockwise rotating grinding fines, counterclockwise rotating to coarse, easy to operate. Based on the origin, the grinding degree is adjusted by rotating N lattice counterclockwise. With wooden handle, it conforms to ergonomics, comfortable grip, and more labor-saving. This type of grinder is compact in design, portable and suitable for outdoor travel. Specification: Item Type: Coffee Grinder Material: 304 Stainless Steel, Wood Size: Approx. 5x12.5cm / 2.0x4.9in Note: 1. The grinding degree table is only an empirical estimate and is for reference only. Please adjust according to the actual situation. 2. In order to protect the grinding core, do not grind in the range of 0-6. 3. The handle cover needs to be covered when adjusting the grinding degree. 4. This equipment is designed only for grinding and roasting coffee beans. Do not grind other items. 5. It is recommended to use a brush device for cleaning, please do not wash. 6. Grinding the edge of the core, more sharp, please pay attention to avoid scratching. 7. Do not allow children to operate this product. 8. Store the product in a dry, shady environment. 9. It is not recommended to disassemble and replace the grinding core and other internal components. If there are special requirements, please do so under the guidance of relevant technical personnel.Package List: 1 x Coffee Grinder 1 x Handle 1 x Cleaning Brush 1 x Chinese and English Instruction Manual