Experience smooth and fast rides with the Spitfire Wheels Sapphires. With a 90DU cruiser and 56mm size, these wheels provide superb grip and stability. The clear red design adds a touch of style to your skateboard. Set of 4 for all-around performance. Upgrade your ride today! Features: Diameter: 56mm Durometer: 90D Soft 90 Duro Cruisers 90DU Clear Riding Surface Fast and Smooth Long Lasting Speed