KR-NET 0.6mm Black Mice Feet Skates Teflon For Logitech G502 Gaming Mouse (2x Pack Set, Competition, Replacement) Competition Series: New Proprietary F4 Silver Treated Ptfe to Provide a Glide Smoother Than Ordinary Ptfe, Glide Feels Smoother, and Will Last for a Longer Time Made of F4 Silver Treated PTFE with 3M Adhesive Made for Logitech G502 Comes with 2 sets. Black Color Remove the Original Feet with Tools and stick the KR-Net Mice Feet. Press and Hold for 10 seconds to secure the New Feet