Detangle brushes remove knots and comb curls without pulling your hair or damaging your scalp. They are waterproof and easy to clean. Suitable for hair textured 3A to 4C, wavy to kinky hair. The product is made of ABS resin which makes the comb lighter than rubber material with nylon needles for enhanced durability and firmness and a curved grip making it non-slip. Usable on wet and dry hair.