Fold-Down Fishing Boat Seat High Impact Plastic Injection Molded Frame Wider Seat Pan provides Extra Comfort Mounts to any Standard BIA 4 Bolt / 5 1/4" bolt pattern Pedestal System, Fasteners Included Seat Dimensions - Height: 15.25”, Width: 20.25", Depth: 18.5", Seat Depth: 15.5"