Classroom Chairs (Set of 6)-Provide seat color option in comments section upon check-out. Choices include: blue (bl), navy (nv), yellow (yl), fuschsia (fs), red (rd), burgundy (br), purple (pr), teal (tl), dustin green (dg), forest green (fg), black (bk).• Budget friendly, large, ergonomically designed seats and backs are injection-molded polypropylene, which provides longer life than brittle thermoset hard plastic, which can shatter upon impact. • Frame has powder-coat, baked on finish. • Heavy duty twin tube back supports. • Extra heavy polypropylene plastic. • Back: 12” x 11.5” - Seat: 11” x 13”. • Leg and back supports are mig welded. •10 yr. warranty.