Check the listing for details. Root Industries Air Wheels 120mm - Black/Marley (Pair). Color: Black, Condition: New. Listed at 69.95 USD. Root Industries Air Wheels 120mm - Black/Marley (Pair) Ridden by more professional riders than any other wheel, the Root Industries AIR series wheel is the industry’s most popular pick; all at an affordable cost. Root Industries special hollow-core technology places strength and stability where it matters and nothing more. This allows for a super lightweight and robust core. Lab tested and rider approved urethane delivers a smooth ride and a long lasting wheel. Rounding out the AIR Series wheel are elegant finishes and a variety of color options to make your scooter stand out among the crowd. The world's fastest wheels since 2009! Features Size 120mm; 24mm width profile 8.08 Ounces / 229 Grams per wheel (120mm) 88A PU hardness Aircraft-grade aluminum alloy core ABEC 11 bearings included and installed Wheels are sold in pairs At SkatesUSA our primary goal is to give our customers the best deals on skateboards, longboards, scooters and bikes at the lowest price. That is our commitment to you, our valued customer.