Pilot chair features 28-oz. marine-grade vinyl that is loaded with UV and mildew inhibitors. Rotational molded seat frame. High-compression foam padding. Includes 15" fixed pedestal. Spider mounting plate. Three-year warranty on upholstery. Six-year warranty on frame. 18-1/4"H x 17"W x 19-1/2"D; 16"W (inside).