Diameter: 110 mm\n\nWidth: 24mm\n\nAxle: 8mm\n\nBearing: ABEC-9\n\nHardness: 88A\n\nCore: 6061-T6 aluminum\n\nWeight: 8.82oz / 250g\n\nSold in pairs\n\nHard enough to roll well, and soft enough to have a good grip. They have the best quality of PU available with 95% rebound. Precision CNC aluminum core.\n\nPrey Dodge bearings.