The PowerTek Sport BlackEdge Bauer Lightspeed II Runners are high-performance replacement skate blades engineered with a revolutionary carbon-coated stainless steel fusion that is three times harder than standard steel, delivering exceptional durability and a much longer-lasting edge. Designed specifically for Bauer Lightspeed II holders, these sleek black blades significantly minimize friction to maximize glide speed while providing the structural bite and stability needed for explosive starts, tight turns, and superior overall maneuverability on the ice.