Those long work days will seem a little shorter when sitting in Boss's mid back ratchet computer chair. Comfortable and stylish, this nifty chair is available in your choice of four different commercial grade fabric colors, so there is one for everybody.   The ratchet back height adjustment mechanism allows for perfect positioning of the back cushion and lumbar support.  Other features include loop armrests, adjustable tilt tension for users of any size, lumbar for extra support, a pneumatic gas lift for no hassle height adjustment, sculpted seat cushion made from molded foam, hooded double wheel casters, and a durable twenty seven inch nylon base for added stability. With so many features and color options, the only problem you'll have is deciding which color to buy.