r Waterclouds Black Brush NO.01 (25mm) has the unbeatable combination between ceramic and ionic coating. The ceramic retains heat in the brush while ionic coating creates life and shine to the hair. The rubberized handle allows the brush to sit perfectly in the hand and the twisted bristles provide excellent grip in the hair, all for increased happiness in the work!rr Waterclouds Black Brush NO.01 is a round brush of black metal with ergonomic handle that is optimal to blow dry with. Metal housing for increased heat output.rr Use. Blow dry the hair until it is 80 % dry. Take a small section of hair, place the brush into the root area and direct the heat from your dryer at the barrel while evenly moving the brush through your hair.r