Standard Options: Tablet Arm (300 lb capacity) Kydex or Solid Hard Maple Tablets Kydex Arm Caps 2 Back Heights (14"H & 16"H) Wood Base Brushed Aluminum Nave Legs Heavy Duty Casters Recessed Pull Weighted Moisture Barrier TB133 (Fire Barrier) Tamper-proof Fastene Features: All Tria Chairs pass 1200 lb drop test / 2000 lb static load Replaceable Components Open Back Clean Out/Closed Back Aesthetic Wear Point Seat Rotation Steel Inner Construction Dymetrol Suspension Sustainable Materials used in frames Solid Hard Wood Feet Blanket-wrapped shipping (no cardboard packaging waste) Lifetime Warranty