Package contents: You will get 2 different colors of swimming caps to keep your child fresh and eager to swim. Therefore, your child likes to swim without worrying about his beautiful long hair, and swimming goggles can protect the eyes. + Flexible size: a variety of sizes fit you very well, width: 14cm; length: 21 cm (extendable up to 31 cm). Most kids/kids/boys/girls with short to medium hair can cover their head and ears. Enough room for the hair to fit comfortably. The size is medium or small. It is suitable for children with long hair, girls, boys, teenagers and men and women with medium hair and curly braids, curly hair or braids. Loose style design: creating single laboratory. No tighter than the headband. Imagine not stepping on your child's pigtails or ponytails, no more skidding, no more headaches. Protective device: the swim cap can reduce air resistance, fix the hair in an appropriate position when swimming and protect the child's hair and ears from the sun, chlorine or salt water and other bad weather.