Maui SkateboardWe use high quality wheels meant for speed and carving. Our wheels are made from a polyurethane formula. The wheels are clear with led lights in the middle that light up and glow when spun. The led lights are powered by a magnet using friction from the spinning wheel to light up. The wheels are 70mm in size and 78a hardness with abec 7 bearings. These boards aren't slippery and don't need grip tape at all. We found that our boards are even grippier