A & I Products Wrap Around Back w/ Arms - A-W222YL YLW Vinyl, 300 lb / 136 kg Weight Limit Seat, yellow leatherette upholstery, which is vacuum formed and heat welded watertight. Complete suspension mechanism absorbs in excess of 40% of rough terrain vibrations. Equipped with an adjustable base for 5 different mounting angles. Slide track and 5 position adjustable base. Base has slotted mounting holes for 2-1/2 inch fore/aft adjustment. Replacement seat cushion TS1040SC, backrest TS1040BR, shock absorber TS1050SA, spring TS1050SPR. Thanks for looking!