Maxi Ergo Chair with Lumbar Pump Folding ArmsThe Maxi Ergo Chair With Lumbar Pump + Folding Arms is the perfect solution for those who spend up to 8 hours a day working at their desk. This chair is designed to be supportive and long wearing, ensuring that you can work comfortably for extended periods of time. The ratchet back allows you to adjust the back rest to curve to your back shape, ensuring that it is always in the correct position for maximum comfort. The chair is also supplied with