Product Features: Two types of teeth density for detangling differeny hair types, folding design for easy storage, convenient to carry. Material: Plastic, Nylon. Storage: Sstyore in a cool, dry and ventilated place. How to use: Dense teeth are perfect for detangling hair end, wide teeth are for smoothing bottom hair. Caution: 1. Avoid contact with corrosive substances, keep away from heat, temperature exceeding 80c may cause deformation. 2. Do not exert excess force to avoid hurting scalp and defroming this product. 3. Keep out of reach of children.