【Getting Kids to Love Sports】This toddler helmet is suitable for a wide range of indoor and outdoor sports, including roller skating scooter skateboard balance bike ride bicycle, Spring is just around the corner, so let your kids bring it with them to the outdoors! 【Notch Safety Standards Compliance】RoyalBaby kids bike helmet set is rigorously tested and meets renowned safety standards such as CPSC, ASTM F2049, and Snell. These standards are the result of extensive research and testing to ensure maximum protection for your child's head in case of falls or collisions. When it comes to your child's safety, nothing is more important than a helmet that can truly safeguard them in dangerous situations 【Perfect Fit and High Adjustability】With a wide range of sizes available, it can fit children ages(3-5 years) and head circumferences(18.9-21.3inch). The adjustable dial system at the back and adjustable straps enable you to achieve a snug, gap - free fit. This not only provides comfort but also ensures that the helmet functions optimally during use. As your child grows, the adjustability allows the helmet to grow with them, maintaining a secure fit over time 【Lightweight and Comfort - Oriented Design】This toddlers helmet with EPS foam inside and ABS shell outside, and soft removable liner,safe and comfortable for your child to wear, this helmet minimizes the strain on a child's neck. 11 ventilation holes to allow for excellent airflow. This helps keep your child's head cool and comfortable while riding. A comfortable helmet is more likely to be worn consistently 【Classic Look Makes It More Enjoyable for Kids to Wear】This helmet protection set is available in three colors. Both boys and girls can pick their favorite color, and when kids like the look of a helmet, they're more motivated to wear it, which is crucial for their safety during outdoor activities