I bought this for my Sit Topstar Point 80 Office chair. As with Amazon, the packaging was exemplary and the first impression of the backrest was not bad ... But then came the assembly. In contrast to the chair itself which you can in 5 minutes virtually blind assemble the mounting of the back was a little more complicated. I do not know if I am not mistaken, but I had the impression that the enclosed screws are too short for the installation. A rest I could mount to much Friemelei. 2. When I had the plastic spacers as far grind to a tightening in the first place was possible. Oh .. Theoretically, you can mount the backrest in at least 2 different distances from the side of the chair ... Because of the rather short screws is not so simple ... If you have the backrest of the chair once siehts quite nice ... However, the backrest extremely sensitive. I have my chair just slightly pushed up against my desk which has already left its mark. Man must also take care that the backrest engage correctly when adjusting the height ... I am (imprudently) supported what the consequence was that the backs are by rushing down. As for the convenience .. which is ok ... for the price that is acceptable ... Unfortunately, they keep backs but not what promises the chair itself ... That might be better. However, almost 30 and no such high price of adjustable armrests.
