Classically styled drafting chair is designed for extra comfort and long life and includes a manual screw-type height control for environments where gas lift is not desired. Mid-height backrest offers solid orthopedic spine support while the full-size upholstered seat is ergonomically contoured. Both are made from long-lasting molded foam. Features include screw height control, polypropylene seat and back shells, height and depth adjustable backrest with tilt angle control, and black powder-coated tubular steel base with built-in 19" diameter foot ring. Seat cushion is 19"w x 17"d x 3" thick. Backrest is 16"w x 14"h x 2 1/2" thick. Height adjusts from 23" to 32". Comes complete with a set of locking casters and a set of non-slip floor glides.