Whitecap Stainless Steel Ski TowThe Whitecap Stainless Steel Ski Tow comes with stainless nut and washer fasteners. The Ski Tow is made of 316 Stainless Steel to hold up in Marine conditions. Available in three sizes.6260Ring Diameter: 2-1/2"Stud L: 2-1/2"6261Ring Diameter: 3"Stud L: 3"6262Ring Diameter: 3-1/2"Stud L: 3-1/2"California Residents:WARNINGCancer and Reproductive Harm -P65Warnings.ca.gov