OJ Wheels Erick Winkowski Mushroom 53mm, 101a Pro Elite EZ Edge white / red swirl. Elite WAY TOO FAST Urethane! Flying out the lab to the streets and beyond, Elite Urethane guarantees more speed, a longer lasting roll, and hands down epic times with your crew. EZ Edge shapes feature a medium-wide riding surface consistent slide and round edge for superior response. All OJ skateboard wheels are sold as sets of 4. OJ Wheels Erick Winkowski Mushroom 53mm, 101a Pro Elite EZ Edge white / red swirl. Elite WAY TOO FAST Urethane! Flying out the lab to the streets and beyond, Elite Urethane guarantees more speed, a longer lasting roll, and hands down epic times with your crew. EZ Edge shapes feature a medium-wide riding surface consistent slide and round edge for superior response. All OJ skateboard wheels are sold as sets of 4. Brand OJ Wheel Diameter (Millimeters) 53 Wheel Durometer/Hardness 101a Road Surface (Millimeters) 18 Wheel Shape EZ EDGE Wheel Width (Millimeters) 33