this shower cap is made of soft pp and tpe silicone, and the baby shower cap is soft and smooth to the touch, light and skin-friendly. considering the size of the shower cap, it can be adjusted according to the shape of the head suitable for head circumference of 15-24 inches (38.1-61.0 cm), suitable for babies over 6 months old this children's bathroom accessory is also very suitable for haircuts and sunshade. put it in a beach bag or pick it up to trim your hair quickly. easy to clean and durable. note: when using, release the adjustable button. touch the front of the shower cap with your forehead, then buckle the adjustable button on the tail..syi