Urethane black outdoor gummy wheels as found on the stock Moxi Lolly skate. They are extremely durable and ride smoothly on sidewalks, streets, pavement, trails, boardwalks, everywhere. You’ll sail over rocks, twigs, bumps, and cracks effortlessly with these. I’ve even used Moxi Gummy wheels indoors at rinks and they work great there too. These wheels provide a lot of stability. High Rebound MDI Processed Urethane With Urethane Core Wheel Size: 65mm Hardness: 78A This is a complete set of 8 black wheels with Riedell ABEC 5 bearings included so it will be easy to pop them on to your skates with no fuss. There is light wear on them, as I did not use them frequently since I have several other sets of wheels. They roll extremely well. Please see all photos.