Effectively combats static electricity by providing a preferred path to the grounded source without the use of wrist straps, shoe straps or drag chains. Features contoured high resilient foam seat with independent paddle level control for 14° angle seat tilt and center pivot point. The 2-1/2" deep backrest has independent paddle lever for 20° tilt from a center pivot point, ergo knob adjustment for 5" height adjustment, built-in lumbar roll and chrome plated back stem. A 5-star 27" polished aluminum base comes with 2" ESD hard-floor braking casters. Meets guidelines set by the ESD Association. Dissipative upholstery with continuous filament carbon fused fiber in Black. Some assembly required. 15 Year Warranty.