Recommended Uses: Cycling, Scooter, Climbing, Snowboard, Outdoor, Skateboard Vehicle Service Type: Scooter Inner Material: Expanded Polystyrene Outer Material: Polycarbonate SAFE PROTECTION FOR CHILDREN: The children's helmet is made of a PC shell and thick EPS foam lining for impact resistance and durability to protect your child's head from bumps and abrasions. Adjustable Accessories: Size: 50cm54cm, Weight: 330g. The lightweight bike helmet for kids features adjustable straps and a rotatable dial for a secure and comfortable fit to accommodate various head circumferences. Well-Ventilated Design: This toddler helmet includes 11 vents to ensure optimal airflow. The aerodynamic and ventilation design helps keep children cool in high temperatures by allowing moisture to evaporate and reducing elevated body temperature during physical activity. WIDE APPLICATIONS AND IDEAL GIFT: This sports helmet for toddlers is suitable for multiple activities, including outdoor skating, cycling, snowboarding, and scooter or balance bike riding. It makes a great gift for boys and girls aged 2 to 5 years old, perfect for holidays such as Children's Day, Christmas, birthdays, and other special occasions. WHAT YOU GET: The adjustable kids' bike helmet is CE compliant, providing an important safety standard when selecting a helmet for your child.