Give your ride a maniac makeover with the universal insaneathane 101a skateboard wheels from oj wheels riddled with a deranged design on the surface all strapped in a white coat this crazy component is ready for some insane skating you39d have to be unhinged to miss out on this deal so be sure to pick up a pack and make your set up just as crazy as you aredimensionsdiameter 53mmmaterialsdurometer 101a polyurethanesold as a pack of 4 bearings not included