Sticky rubber and felt soles work because they’re soft enough to conform to the texture of subsurface rock. But sometimes you need a little extra bite to cut through algae, silt or other forms of aquatic slime. These durable, hardened 10mm steel studs are designed specifically for our new Foot Tractor Wading Boots – Sticky Rubber and River Salt Wading Boots, and have a 6-head bite tips with locking teeth on the underside to ensure they stay securely fastened to your boots when you need them most. Installation wrench included.