Prevents water and debris from entering your eyes, ears, face, nose and mouth when you take a shower, wash your hair, or cut your hair.All head circumference parts are made of silica gel, elastic, soft and comfortable, and waterproof effect is super. Adjustable head circumference size, Head circumference can be used above 15 inches,Suitable for head size : 15-24in(38-60cm),Adults and children can use as long as they meet the head size. In addition to better eye protection, the product also designed a protective ear function. It is more suitable for children to use. When children bathe, do not worry that water will enter his eyes and ears. Wearing method:Drying hair is wearing a shower cap,Because silicone itself is flexible, be sure to tighten.Angle is inclined 35-45 degrees, the soft part of the hat is close to the skin, do not mix the hair, then fasten it to rinse