The Kemistry Super 7 Bearings are built with precision-polished chrome steel balls, delivering effortless glide, durability, and consistency through every stride. Pre-lubricated with a high-performance speed lubricant, the Super 7's are made for smooth acceleration and top-end speed, allowing players to hit the rink ready to roll and dominate. Included in the package are eight floating bearing spacers for a quick bearing swap.