Superior 1: An ergonomic, sturdy, antistatic chair. The upholstery is conductive and highly durable (60,000 cycles). The backrest’s height, angle, and distance from the seat can be adjusted. The chair complies with the following standards: EN 61340-5-1, EN 1021-1, and BS 7176. The Suprior 1 ESD chair comes standard with a five-star chrome base and casters covered with conductive rubber to prevent floor scratches. The image is for illustrative purposes only; the chair does not include armrests as standard. Armrests must be ordered separately!