Superior hard plastic seat and back provide added strength and long-lasting color. 5/8" thick, hard plastic writing surface. Stout, 1-1/8" tubular steel frame with chrome finish. Tied-in arm welded to tubular steel back support for extra strength. Handy steel-rod bookrack underseat. Nylon-base swivel glides. Manufacturer’s ten-year warranty. Space-saving tablet arm. 20w x 31d x 30-1/2h. Shpg. wt. 79 lbs. Two chair desks per carton.