Twin lever operator chair with posture curved seat and waterfall front sculptured lumbar and spine support fitted with underseat skirt gas height adjustment back tilt and back height adjustment heavy duty gas lift 154kg25 stones black nylon 5 star base with twin wheeled hooded castors available in choice of blue black wine or aqua seat height 410 510mm overall h x w x d 1060 x 510 x 500mm self assembly required