Dock-Rite Ribbed Twin-Eye Fender Made of high-quality, soft, flexible marine-grade vinyl High-gloss finish UV and salt resistant Seamless one-piece construction with thick walls Molded-in valves (football needle) ensure easy inflation and long life Ribbed Twin-Eye Fender Deluxe Molded-in valves (football needle) ensure easy inflation and long life Lifetime warranty Seamless one-piece construction with thick walls