About this item STYLE & DESIGN – Classic shape and design in a variety of colors VENTILATION – Six vents to keep your little one cool while learning the ropes COVERAGE – Extended rear coverage for provides extra protection COMPLIANCE – Compliant with the mandatory CPSC safety standards for bicycle helmets SPECIFICATION – Recommended for kids ages 3-5 but will fit most heads measuring 48-52cm . Important: Always take a head measurement. Head sizes and shapes can vary, even within an age range. Using a helmet that does not fit can be dangerous