Grosfillex US092078 Pacific Fanback Amazon Green Stacking Armchair (4 per case)Features and Benefits: Passes ASTM F 1561 96 Class B performance standard for commercial outdoor seating. A food service and hospitality industry standard. Solid one piece molded construction. Constructed of 100% prime resin; a material impervious to salt air, chlorine and most common stains. Resists discoloration because of U. V. stabilizers. Attractive high gloss finish. Heavy duty contract grade armchair. Fanback design provides a distinctive look,