1. Material of bristle beech The bristle bristles can effectively clean the hair and dirt, even the head oil, and the pig canal hair is stiff Moderate, does not irritate the skin, about 2cm long, cleans dirt deeply 2. Hand pinch groove design The grooves on both sides of the handle are ergonomic (that is, comfortable to hold) At the same time, it can prevent hands from slipping during use 3. The principle of radian design Radial design, can better fit the human head or face The beard makes it cleaner when cleaning hair