The best scooters on the market. Our Spectrum scooters are made of a durable high-impact polyethylene with non-marring casters. Grasp inside the hand protectors to shield fingers and hands from other scooters during play. 16″ size. Wheels are 2″ diameter and the bottom of the scooter sits approx. 2-1/2″ off the ground.Don’t pay a lot and still bring your “A” Game.That’s the Spectrum Difference.Spectrum products deliver superior quality at a price that’s easy on your wallet.Tough enough for regular use in the gym or on the playground, great for training, perfect for introducing kids to sports … and What a Selection! Get Spectrum… and Get Playing!