The Unscooter Slider U6 - Three Wheel Action Scooter - Pink High quality tubular steel construction. The stability of three 6" Polyurethane wheels and the safety of dual handbrakes. Ages 8 to adult (250 lb. weight limit). Great for most kids 8 & up, teens and even adults up to 5' 8" tall. Builds Strength, endurance, Balance & coordination. Our most versatile model - providing the highest action & maneuverability, yet accommodates riders of all fitness & skill levels. Kids love to pump up the speed and Slider's drifting action.