8WD588PLS Series High Back Fishing Boat Seat, ideal size and design for durability, comfort and support Injection Molded Plastic Seat Frame with No-Pinch Aluminum Hinges, Marine Grade High Compression Foam Padding provides all day comfort and support Embossed vinyl surface, Marine Grade 28 oz. vinyl, withstands the effects of sun, heat, rain and soiling under normal conditions; Emblazoned with logo detail Mounts to any BIA Standard 4 bolt, 5 1/4" bolt pattern pedestal system or swivel with included fasteners Seat Dimensions - Height: 21.25", Width: 17", Depth: 21", Sitting Depth: 14"