The Bell Sports Light Up Infant Helmet - Octobabies features seven top vents to help keep little heads extra cool. The base guard provides enhanced aesthetics and durability. Tapeless technology, a pinch guard buckle and extended rear coverage provide extra comfort and protection. The visor offers protection from the sun and elements. The Bell Sports Light Up Infant Helmet - Octobabies also features LED reflectors for high visibility. Fits head size 18.5 to 20 inches.