The Revision Variant Steel Hockey Wheels come with all the bells and whistles from the previous Variant Steel's but with an improved color scheme. The pro-level urethane combined with their Torus Technology provides excellent grip while turning and increased raw speed. These wheels offer a 78A hardness which is unusual for an indoor roller hockey wheel but they are designed for the player who puts a lot of pressure on their wheels when they skate. This will allow the wheels to last longer while still providing excellent grip through turns. Ideal Playing Surface: Sport Court, Wood, Smooth Concrete Hardness Guidelines: 78A = 220 lbs and below Hardness selection should be based on player weight and skating ability. A player can choose a wheel designated for a heavier skater if they have advanced skating skills to compress the wheel enough to grip. This will allow the player to maximize their speed. Fit Guidelines: Standard hub wheel designed for the standard 608 bearing size