Take Barbie and her friends on all your outdoor adventures! This helmet features the TrueFit, 1-step adjustment system for a perfect fit every time. The PinchGuard technology incorporated into the adjustable nylon straps ensures pinch free buckling. Comes with high-impact reflectors for increased visibility and a built-in visor to shield from the sun and other elements. CPSC 1203 Bike safety compliant. For ages 5-8. Fits head sizes 19.7-21.2" (50-54cm).