Comfortable and stylish, this chair is constructed with a rotomolded plastic shell and heavy-duty OEM grade vinyl. Pillow back and seat cushions snap on and off for storage. Grooved thick-wall 2-7/8" dia. polished aluminum pedestal with 9" dia. base, 360° swivel, and positive locking fore and aft slide. 15" fixed pedestal. Mounting plate included. 18.25"H x 20.5"W x 22.5"D; 17.75"W (inside). Six-year warranty on frame. Three-year warranty on upholstery.