The True Shift Onyx Runners are designed to deliver elite performance. Designed specifically to fit the True Shift holders, the Onyx runners are black coated to enhance the longevity of skate sharpenings and provide for a sharper edge, helping increase acceleration during hard skating strides and crossovers. Turn sharper and accelerate harder with the True Shift Onyx Runners. For durability, the layering will help protect against nicking and impacts during skating, like impact with pucks, equipment, or non-ice surfaces. The True Shift Onyx runners are sold as a pair and are only compatible with the True Shift Holders.