The durable In-mold polycarbonate (PC) helmet shell provides maximum head coverage and features a shock-absorbing EPS liner, 7mm sealing foam inserts and a soft chin pad for superior protection and comfort. Easily adjust the size of the helmet with the rear dial. The toddler safety helmet has a battery powered LED light on the back that flashes in 3 different modes (on/flash/quick flash) for maximum visibility and extra safety.Our toddler helmets have a battery powered rear light (6 LEDs) that flashes in 3 different modes for added visibility and safety.