Korkers Xtra-Bite Carbide Screw-In Cleats - Durable, carbide screw-in cleats for added traction on slimy, mossy rock. Incredibly durable, sharp tungsten-carbide screw-in cleats bite through slick algae and moss-covered rocks and provide enhanced traction The sharp tip and unique auger thread design keeps cleats locked into place and makes installation easy Standard Warranty: 1 year from the date of purchase XTRA-BITE Screw-In Cleats are compatible with Korkers Stealth Sneaker and Chrome Lite models only Style: FA9100