Flash Furniture HERCULES Series 661 lb. Capacity Black Sled Base Stack Chair with Air-Vent Back Multipurpose Stack Chair 661 lb. Weight Capacity Stacks up to 5 Chairs High Black Plastic Seat and Back Ergonomically Contoured Design Perforated Back allows air circulation Easy to Clean Supportive Front Cross-Brace Black Powder Coated Sled Base Frame Protective Plastic Floor Glides