Features: It is compatible with for Mountain Bike and road bikes for kids. It features good ventilation function with air holes and good protective performance, therefore it was specially designed for the endurance racing athlete kids. The inner EPS shock-release system was put in. We use the aramid filament to enhance the strength. Specifications: Size (Approx.): S (50-54cm / 19.69-21.26in), M (54-58cm / 21.26-22.83in) Material: (shell) imported green PC material + (the main body) imported EPS foam Notice: Objects may have Logo, if you want to know, please contact us. Otherwise, please do not bid. Age Group: Kids Material: EPS-- Type: Other--Bike Helmet Certification: CE-- includes:1 x Bike Helmet Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it