Sonar Wheels - Zen - Quad Roller Skate Wheels - 4 Pack of 32mm x 62mm 85A Wheels DURABLE FOR MILES OF USE - The Sonar Zen roller skate wheels' durable urethane will give you long-lasting grip whether on a rink, sidewalk, or street. ENGINEERED TO AN IDEAL RIDE - These outdoor recreation skate wheels reduce friction and maximize speed on various types of surfaces. These quad rollerskate wheels are great for casual outdoor skating. SMOOTH RIDE FOR COMFORTABLE SKATING - These versatile skating wheels roll smoothly to help improve the comfort of your ride. The Sonar Zen wheels from Riedell can upgrade your skates or be future replacements. INCREDIBLY RESPONSIVE TO YOU - The Sonar Zen skate wheel design makes it easier to perform stops, and it offers excellent handling for trail skating. MATCH YOUR SKATES - These skates wheel come with an 85A hardness. The Sonar Zen comes in eight different colors to match any set of skates: black, blue, pink, red, green, orange, yellow, and magenta.