Check the listing for details. Root Industries Air Wheels 110mm - Black/Red (Pair). Color: Black, Condition: New. Listed at 59.95 USD. Root Industries Air Wheels 110mm - Black/Red (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. Features: Aircraft-grade aluminum alloy core Offered in 110mm & 120mm lightweight design ABEC 9 bearing included and installed 88A PU hardness 23.8mm width profile 6.95 Ounces / 197 Grams per wheel 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.