HARDBITE WADING BOOT STUDS: The Simms HardBite Wading Boot Studs are designed for felt sole boots. Use these studs to easily convert felt wading boots to studded boots for a better grip and balance. CORROSION RESISTANT: These 45+ Rockwell hard screws are zinc-plated. The zinc will help resist corrosion and rust, extending the lift of your new studs. ENHANCE TRACTION: Place the welded carbide gripper studs on your felt-soled wading boots to gain additional traction and durability while navigating icy or slippery terrain. EASY INSTALLATION: These studs feature a 0.25 in. hex head. These sharp point screws fit any 0.25 in. nut driver or drill bit. Simply install them into the bottom of your felt wading boots for instant studded boots. SIMMS FISHING: Show off your Simms Fishing pride with these premium Wading Boot Studs. These are for use with felt-soled boots only.