Ruggedly constructed traditional chair that offers both comfort and durability. Features include pneumatic height control, a height - and depthadjustable hinged backrest with polypropylene back shell, dual-wheel casters, and a 23" tubular chrome steel base with built-in foot ring. Seat cushion is made of long-lasting, comfortable molded foam and is 18"w x 18"d x 4" thick. Backrest is 15"w x 10"h. Height adjusts from 23" to 31". Comes complete with a set of locking casters and a set of non-slip floor glides.