Heavy Duty Plastic Stacking Chair. This chair is constructed of thick-walled 16 gauge 7/8 inch tubular steel frames. Contains an under-seat (X) weld for superior strength. Seats are backs are constructed of 3/8 inch high-density polyethylene. Frame ends are finished with heavy-duty plastic glides. The chair weights 10 lbs. Lifetime warranty on seats and backs. Standard colours are pictures, custom colours available.