The Teknik Office Ergo Comfort Black Fabric Mesh high backed chair is our versatile multi-adjustable black fabric executive operator chair : perfect for all environments and users. It has 4 multi-adjustments - seat tilt : seat slide : back tilt and gas lift seat height adjustment for excellent user support and comfort. Certified for 24 hour use (BS5459-2: 2000) and with 150 kg rated gas lift : its an ideal and affordable solution for all types of work and home environments. The curvy aerated backrest is also an additional welcomed feature for this multi faceted chair. The Ergo Comfort Mesh accepts height adjustable comfort armrests (sold separately) : has a sturdy nylon base and is available in Blue or Black Fabric.