High quality material (zinc alloy) with advanced manufacturing process. Therefore this grinder is built with strong and practical grinding teeth. Smoothly articulated, this grinder consists of a combination of 4 main components. Helps to make the grinding smoother and more even when rotating manually. Easy to clean & easy to carry . A damp cloth or water is enough to clean grinder quickly. The grinder can be carried around and easily stored in a pocket or bag. Anytime, anywhere, get rid of power and wires. Easy to use grinder with simple rotation in any occasion .