Details: Features an ergonomic design for optimum, all day comfort. Thickly padded, contoured seat and back for comfort. Built in lumbar provides extra support for your lower back. Pneumatic seat height adjustment adjusts instantly at the touch of a lever. Back height can be raised and lowered to fit different sized users. Back angle adjustment allows you to sit at the proper angle to your desk. Height and width adjustable urethane padded arms are included to rest your arms comfortably. Height adjustable chrome footring to rest your feet comfortably. Attractive chrome pneumatic cylinder raises the chair at the touch of a lever. Heavy duty nylon base with dual wheel casters; built strong to support heavy users. Rich, top grain black leather is the icing on the cake. Dimensions: Seat Size: 19"W x 18.5"D x 5"Thick. Back Size: 18"W x 20"H x 5"Thick. Seat height adjustment: 24" to 32"H. 10 Year Manufacturer's warranty through Harwick.