For those who think that this chair is made in France, think again: it is 100% made in China and it shows. Not only installation was a hassle because of a poorly machined screw hole (2 mm), and too spartan for my taste instructions for a chair that price. I had to ask the help of a second person to complete the editing ... But we should add bad "finishes" at the base of the metallic coating and armrests (visible scratches). Attention because no manual describes the activation of the hydraulic piston to raise and lower the seat. I had to press your foot on top of the piston to be able to trigger it (this can be dangerous). Once mounted, the chair is comfortable enough, although it keeps the kidneys, armrests are pleasant. After a month of use I am generally satisfied with my back and no longer fear the long hours spent in front of my computer.