I can not quite understand how the negative Rezensierenden have mounted their armrests. I could replace the old armrests within 15 minutes by this one. The whole is also stable because only the upper, adjustable attachment wobbles minimal. But that's by design of adjustable armrests way it is. And I must now not all the time deliberately wiggle it. At first contact with the adjustment I first tasted careful about how it all works. Simply turn the knob (not drawing on the arm!) And then moves the arm up or down one notch. For me, it is very stable and locked even fed a. One should plan care that the knob comes back in a central position, otherwise it is not yet fully engaged. The quality of these arms is much better than the standard backrest (Q3) which were mounted with me. Less burrs, the adjustability and the surface is substantially smooth. In addition, the armrests are shorter, thus you can drive closer to the desk - this is an invaluable advantage for me because this is my PC workstation. I can highly recommend the armrests!
