OFM Super Task Computer Chair with Drafting Kit: * Gas lift seat height adjustment * Back height adjustment * Tilt/lock seat mechanism and tilt forward lever * Back and seat tilt, individually or in unison * Built-in lumbar support * Adjustable height arms * Casters included * Stain-resistant fabric * Fabric rated at 750,000 double-rubs * Black nylon frame * Assembly required * Seat size: 21"W x 20.5"D * Back size: 20"W x 22.75"H * Seat height: 26.75"-30.25" or 29.75"-33.25" * Overall height: 48"-51.5" * Overall width: 28.75" * Overall depth: 31.5" * Base size: 5 star - 28.75" * 250 lb weight capacity * Model# 125-DK