This Ladder Back Pilot Chair consists of a rotationally molded seat frame, thick compression foam padding covered with heavy-duty 28-oz. vinyl, 15" aluminum fixed pedestal, swiveling seat spider, and stainless steel mounting plate. Marine grade vinyl is mildew resistant and UV treated. Cushions snap on and off for storage. 32"H x 20"W x 23"D; 17-1/2"W (inside). 6-year frame warranty. 3-year upholstery warranty.