Suitable for use in lab, electronics and electrical industries. Washable polyurethane seat and back rest.Ergonomic design with tilting seat and fully adjustable back mechanism.'S' rated gas lift height adjustment (115kg) .Adjustable footring fitted on high chairs.ESD Arm rests also available.Colour and fabric options avaialable.European standard: EN 61340-5-1:2001 (ESD protective item requirements) .