Designed for use in the electronics and electrical industries. Meets European standard:- European Standard EN 61340-5-1:2001 Protection of electronic devices from electrostatic phenomena.Designed for operators weighing up to 25 stone/160kg.European Standard EN 16139:2013 - Test Level 2 - Furniture strength and durability.Fully ergonomic chair mechanism allowing the following adjustment:- gas lift seat height adjustment, seat tilt, back rest height and back rest rack angle.Cushioned hardwearing upholstered seat and back rest. Available in fabric or black vinyl.Supplied with glides. Fixed height Steel foot ring fitted to high version.Seat height adjustment from 650 to 830mm.