A Low Back with genuine top grain leather at the back and seat for optimized comfort High standard of workmanship including exact strait double stitching and plump to the touch upholstery. High-Polished thick aluminum alloy frame, arms and base, which ensures the base can resist a pressure of 2500lb during stress testing. The 5-star base for greater stability, with tilt-swivel mechanism and seat-height adjustment. The new pneumatic height adjustment allows for easier height adjustment, adds 2 additional inches to the top end of the height adjustment and the new tilt lock allows the seat angle to be secured in a neutral position. Strong tubular steel column available with casters (wheels) or glides. Dimension: 23"W x 34.5"H x 19"D.