Slither down the street berger medusa v3 skateboard wheels from bones overflowing with an infectious design that39s on a completely different scale these rattling rollers are sure to scare the competition stiff show that you39ve got the stones to take them on and pick up a pack todaydimensionsdiameter 54mmwidth 30mmmaterialsdurometer 83b 103a polyurethanesold as a pack of 4 bearings sold separately