With the UV Green Skull from Tireflys, everyone gets something that they like. Children get a cool light up skull they can take with them wherever they go on their bike, and parents get the safety function of a motion sensitive flashing light. The lights add increased nighttime visibility for riders, and raises awareness to motorists that they may be sharing the road. The Tireflys UV Green Skull provides a unique opportunity to create fun in motion while providing the safety of an added light for the bicycle . Great for children of all ages.