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 during play. The best scooters on the market. 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!.