The TREX 6301 Replacement Spikes are designed to replace worn or lost spikes on TREX ice traction slings. Each kit includes 8 durable, heat-treated carbon steel spikes for reliable traction on icy surfaces. To install, pop the old, worn spikes from the rubber portion of the ice cleats. Insert the replacement spikes into the holes on the ice cleats, ensuring the steel side faces outwards for proper traction. They are compatible with several TREX models, including TREX 6