Standard Options: Tablet Arm (300 lb capacity) 2 Back Heights (14"h and 16"h) System Tables Brushed Aluminum Nave Leg Wood Base Moisture Barrier TB133 (Fire Barrier) Tamper Proof Fasteners Combination Fabrics Hard Maple Freestanding and Systems 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