We carry indoor and outdoor quad roller skate wheels and roller skate bearings. Our Sovereign Speed Quad Roller Skate Wheels will work great for outdoor fitness skating, roller derby, jam skate sessions, speed skating, skate park tricks and more. Our main wheel the 62mm Techno Wheel is made of a medium hardness indoor-outdoor 94a, high rebound polyurethane and can be purchased with or without skate bearings and spacers. Great wheels for beginners to advanced pro skaters. Our skate wheels are designed in Tampa Bay, Florida with high quality urethane. We offer the best & lowest prices along with Fast & Free Prime-X 1-3 Day Shipping on all orders.