The second in command for Revision Wheels, the Variant Classic features top of the line RV 100 urethane formula for pro-level indoor grip and speed. ISR (Integrated Structure Ring) prevents wheel deflection for Maximum speed Hollow Torus allows side walls to flex in turns and stops for maximum grip Platinum Core provides open air core for weight reduction RV 100 Series Urethane formula Soft 74A durometer SIZES: 80mm | 76mm | 72mm | 68mm Revision Variant Classic Soft Indoor 74A Roller Hockey Wheel - White/Orange, 72mm MS1395645 MS1395645 688698173734