Breathable comfort: multiple vents and a detachable soft lining make the helmet easy to clean and keep the head cool and comfortable during rides. Cartoon design: a playful cartoon style that adds fun and fashion to cycling, helping your child feel proud to wear it and stand out on adventures. Age and size suitability: designed for children aged about 310 years with head circumferences of 4952 cm; the adjustable size ensures a secure, comfortable fit as your child grows. Enhanced safety and durability: built with an ultrasturdy wearresistant PC shell to provide reliable protection against impacts while maintaining a comfortable, longlasting fit. Key specifications and features Material: durable PC shell with a detachable soft lining that is easy to clean. Ventilation: multiple vents for improved airflow to keep the head cool. Fit and adjustability: adjustable sizing suitable for head circumferences of 4952 cm; designed for ages 310. Compatibility and use: intended for cycling, with practical protection during outdoor activities. Typical use scenarios Family bike rides in the park or neighborhood, providing reliable head protection without sacrificing comfort. Riding a scooter or skateboard, where the cartoon design adds visibility and the PC shell offers impact resistance. Outdoor play and recreational activities where a secure, adjustable helmet helps protect against knocks and falls while growing with the child.