The Springfield Skipper Fold-Down Seat is made with Injection-molded plastic and features interlocking hinges for greater structural support. The extra wide seat is covered with high-quality upholstery for all day comfort. 18"H x 20"W x 17"D• Snap-on cushions• 5" x 5" and 5" x 12" bolt pattern• 5-year mfr. warranty on substrate/frame; 1-year mfr. warranty on upholstery/cushions Extra wide seat covered with high-quality upholstery for comfort Snap-on cushions 5"" x 5"" & 5"" x 12"" bolt pattern | Springfield Marine Skipper Fold-Down Seat