A smart variation on our most popular drafting chair, the Prestige II is designed to meet the needs of professional artists and designers. Features include pneumatic height control, polypropylene seat and back shells, a height - and depth-adjustable backrest with tilt-angle control, articulating seat and backrest, dual-wheel casters, and a 24" diameter reinforced nylon base. Adjustable 21" diameter black foot ring comes standard. Seat cushion is 19"w x 18"d x 3" thick. Backrest is 17"w x 15"h x 3" thick. Height adjusts from 24" to 34".