Pulse Performance Products DX1 Freestyle Dirt Scooter, Black/White 2-wheeled freestyle kick scooter with oversized knobby tires for on and off pavement 8 in. air-filled knobby tires with ABEC-5 bearings absorb shocks and ride over obstacles Polished stainless steel rear foot brake stops easily and BMX-style grips enhance comfort Sturdy steel frame with reinforced heat-treated aluminum deck adds durability and allows grinding Designed for riders 8 years and older, weighing up to 180 lbs.