Because the material of the shampoo hat is elastic, so don't worry about pinching the baby's head. It has buttons, pls compare the baby's head first, determine the button to use, and then turn on the buttons. Effective comfy bath visor that gently expands to fit primary school children's The bathing hat is made of Elastic Silicone, easy to slip on and off tot's head, no water leakage. Wearing from to bottom, then buckle down and pull evenly, do not pull hard, adjust the hair and ears, you can use it. Cartoon style: cute cartoon style to attract baby's attention ADJUSTABLE SNAPS: Size adjustable snap with 4 positions THICKENED DESIGN: Thickened dimple diversion and drainage to prevent water from getting into baby's eyes, so baby can play in the bath MULTIFUNCTIONAL: This 3 in 1 baby shampoo cap can be used as a baby shampoo shield sun hat and hair cap, with multifunctional features and practical use it is good baby shower set for your child, it is also good for shade and hair trimming Nice to have: the baby shower cap comes in lovely bright colours, it is comfortable and flexible, easy to use and practical, it is an indispensable thing for parents who want to make every shower full of fun and laughter, bath time will become more fun using this baby shower cap.