Product Details Enhance your traction with the Orvis PosiGrip Screw-In Wading Boot Studs. These studs can be added to any wading boot, whether felt or rubber, with a midsole depth of at least half an inch. The Orvis PosiGrip Screw-In Studs are tungsten carbide-tipped, providing an aggressive, durable spike that delivers maximum traction, even on the most unstable terrain. Screw-in studs with tungsten-carbide tips Sharp tip for easy instillation 1/4 in. hex head screws Can be added to any wading boot with at least 1/2 in. of mid-sole depth Quantity per pack: 24 studs plus power drill adapter Made in the USA Prop 65 Warning Customer Reviews (1) Write a Review 1 Orvis Posigrip Screw-In Wading Boot Studs Posted by Robert A Cordosi on January 20, 2023 Didnt receive one of the tools that was supposed to come with the package. First one I put in the top broke off. I check the other studs and one had a double layer on it and three others were very lo Read More Didnt receive one of the tools that was supposed to come with the package. First one I put in the top broke off. I check the other studs and one had a double layer on it and three others were very lopsided. Im planning on sending these back for a refund. I would not recommend these studs!!