Bust open the doors to the skating world with the formula four radial orange blast skateboard wheels from spitfire filled to the brim with pyrotechnic pizzazz these wheels are perfect for adding some flavour to any set up light the fuse and pick up a pack today before they39re all gone with a bangdimensionsdiameter 52mmmaterialsdurometer 101a polyurethanesold as a pack of 4 bearings sold separately