1. Material: aluminum alloy, 420 stainless steel, walnut 2. Applicable scenarios: home, office, business trip, travel, etc. 3. Adjusting distance: 0.22mm 4. Packing list: grinder, cleaning brush, storage bag, bean measuring spoon, instruction manual 5. Capacity: about 18 grams for bean storage and 20 grams for powder storage 6. Overall size: about 15.2x4.5 cm 7. Weight: about 416 grams Features: 1. The grinding adjustment ring is designed externally, and the grinding degree can be changed by rotating the adjustment ring. It is equipped with 11+ segment grinding gears and has a number identification of 0-11. The larger the number, the rougher the grinding. 2. The double-bearing center shaft fixes the grinding core to ensure the concentricity and smoothness when the center shaft rotates, so that the grinding core does not deviate when it rotates, and the powder uniformity is improved. 3. Oil-free bearings, high self-lubricating ability, low friction coefficient, wear resistance and corrosion resistance 4. 420 high hardness stainless steel cutter head is used inside and outside, sharp, labor-saving and fast, CNC numerical control precision processing, increase surface hardness, wear resistance, reduce friction coefficient and metal taste 5. The whole machine is made of aluminum alloy, stainless steel and solid wood, and each part can be disassembled for easy cleaning 6. Magnet adsorbs the solid wood grip, easy to disassemble, and the rocker is automatically positioned when the grip is adsorbed