Children's helmet (including impact damping function, effectiveness of the belt system and field of view). It has passed all safety tests, and your child will receive protection that meets the standards.This essential toddler bicycle helmet protective gear set is suitable for children's outdoor activities, including scooters, skateboards, cycling, bicycles, roller skating, biking, cycling, inline skating, skating and other outdoor sports. Will provide you with all-around security protection.ABS shell + high-density EPS foam provides shock absorption, thick soft sponge, comfortable and durable, built-in multiple ventilation holes can help reduce sweating and keep cool. Your child will enjoy the exercise experience of safely protecting the head, elbows and wrists.