Easy Buckle is kid and parent friendly 10 vents CPSC 1203 Bike and ASTM F1492 Skate compliant Plush, anti-microbial interior padding Fits head sizes 48-52 cm The Bell Pint Multi-Sport helmet is great for kids aged 3 to 5 years, and fits head sizes from 48 to 52 cm. The Easy Buckle system is child- and parent-friendly and the extended rear coverage provides extra protection. The Pint helmet is lightweight and features plush interior padding and extra-soft printed straps. CPSC 1203 Bike and ASTM F1492 compliant.