The S6000 is quickly becoming one of our best sellers. With thicker foam on the back rest than our other operators chairs, it is very comfortable. It is designed to give you good lumbar support even when working in front of your computer. It is fitted with a back rake mechanism which can be locked in any position. The back rest is also height adjustable, so it can be adjusted to your height and has a waterfall seat to offer additional comfort. Even though it comes standard without arms, it can be fitted with a wide range of arms.