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. The best scooters on the market. 12 inch size. Set includes 1 each of the 6 spectrum colors: red, orange, yellow, green, Blue and Purple. Maximum recommended weight is 200 pounds. These standard size scooters have a 11-3/8 inch x 11-3/8 inch base and a maximum width of 16-1/2 inch measured across the outside of the handles. Wheels are 2 inch diameter and the bottom of the scooter sits approx. 2-1/2 inch off the ground.