This is a replacement pair of XRAY 12mm Hex "Aerodisk" Stadium Truck Wheels.
Specially-designed stadium truck wheels with 12mm internal hex. Perfect fit, and perfect for high-competition racing. The wheels are made from flexible material while still being durable against impacts. The side of the wheel is aerodynamic for maximum performance.
Special features of the wheel are visible from the inside: reinforcement ribs to make the wheels as stable as possible and eliminate deformation.