Bullet Points: 1Durable and Safe: The use of sturdy one-piece PC shell and EPS foam provides ultimate protection. 2Breathable and Lightweight: 12 ventilation holes keep your child's head cool and dry. The detachable inner lining is easy to clean. 3Comfortable and Adjustable: The easy-to-use dial system is suitable for different head sizes. The chin strap can be adjusted to help adjust the tightness. 4Lightweight and Strong: Our bicycle/scooter helmet adopts a one-piece structure to improve strength and reduce weight, so that it will not cause a burden to children when they are riding. 5Ideal Gift for Children: The cute and unique shape will surely attract children. An excellent gift for children, suitable for cycling, skating, scooters and other sports. Description: This cartoon bicycle helmet is sturdy and durable, using a solid one-piece PC shell and EPS foam to provide the necessary protection for the child's head. The design of 12 vents makes it cool and dry even when the child is sweating his head during exercise. The tightness of the helmet can be easily adjusted, so that the child can wear it comfortably without a sense of pressure. The childlike design will attract the children's attention and make them like it immediately. It is a great gift for children, suitable for cycling, skating, scooters and other sports. Specification: Product Name: Children's Helmet Material: shell PC + internal EPS Technology: One-piece molding Size: 51-55cm External size: about 26*21*17.5cm/10.2*8.3*6.9in Inner diameter: about 16.5*21cm/6.5*8.3*in Weight: about 270g Ventilation holes: 12 Packing list: Children helmet*1