Bell Sports Injector Child Razor MultiSport Helmet, Pink, Floral Print Design, 10 Vents for a Cool Ride Ages 5-8 Made in USA; Complies with U.S. CPSC/ASTM Safety Standard Size=20.125"-21.625" (51-55cm) Ages 5-8 True Fit for Correct, Comfortable Fit Hard Shell Construction with 10 Vents for Cool, Safe Ride Side Squeeze Buckle for easy Adjustment