Standard Options: 4 Chair Seat Widths Anti-microbial Urethane Arm Caps Perma-Guard Wood Leg Protector Moisture Barrier TB133 (Fire Barrier) Tamper Proof Fasteners Combination Fabrics Hard Maple Features: Integrated Bariatrics - all Marina Chairs pass 1000 lb test/2000 lb static load Replaceable Components Wall Saver Design Cove Clean-out Design Dymetrol Suspension Solid Hard Wood Arms/Legs Sustainable Materials used in frame Blanket-wrapped shipping (no cardboard packaging waste) Lifetime Warranty