Thank you for viewing. These are dirt wheels for skateboards. You can enjoy riding them on slopes of dirt or grass. I've used them a few times, but I no longer have a place to ride, so I'm selling them. Attaching them directly will definitely cause wheel bite and is dangerous, so I'm also including dedicated riser pads and bolts. There are a few small areas with peeling like in the photos, so I'm listing them as having scratches and dirt, but there's no problem with their use. If you have any questions, please feel free to comment.