"4President"Size: 70mmDurometer (urethane hardness): 80aContact patch (width of wheel in contact with ground): 53mmRiding style: hard carving, pumping, downhill racing, dancing, sliding (once broken in)These wheels are designed for grippy, hard carving and pumping. They will slide when broken in.The In Heat features a slalom influenced, offset design with subtle lip characteristics for increased grip, speed, and high energy return.Poured with the specially formulated, high rebound "Happy" urethane. Shaaa BAM.Set of 4 wheels, enough for 1 complete skateboard.