ProTool Screw-In Snap Stud Replacement Kit Nickel Plated Brass Premium-grade snaps for use with canvas and other material for covers and canopies Brass construction with corrosion-resistant bright nickel finish for outdoor and marine applications Galvanized steel stud screw with Phillips head, #8 x 5/8" Set of 10 studs with screws and 10 each socket and cap; see below for size and dimensions Replace missing or broken snaps on boat and RV covers for maximum protection from elements