Raskullz Shark Attax mask helmet takes helmet design to a whole new level! The crazy cool bike helmet increases the fun on a bike, scooter, or skateboard. The rubber mask piece is removable, and easily snaps on or off. The 3D shark fin, orange tiger shark graphics and matching grey straps, complete the unique shark look. Recommended for ages 5-8 years with head sizes measuring 50-54 centimeters.