Alvin Premo Black Ergonomic Office Chair Navy

Ergonomic features in a rugged contemporary design, the Alvin Premo Black Ergonomic Office Chair Navy is the ultimate in seating comfort at a reasonable price. Backrest provides solid orthopedic spine support and full-size upholstered seat is contoured for added comfort. Features include pneumatic height control, polypropylene seat and back shells, a height- and depth adjustable backrest with heavy-duty spring tension angle control, dual-wheel casters and a 25" diameter reinforced nylon base. Seat cushion is 19" w x 17" d x 3" thick. Backrest is 16" w x 14" h X 2-1/2" thick. The height adjusts from 16-1/2" to 21-1/2".