How it works you can read in the other reports, just as does the part well with me;)
However, could the front support surface on which the notebook with the front rests not runterzurutschen, be slightly larger. My notebook is somewhat rounded front, and as it is quite happy with this crash quite small contact area. But since you can arrange this edition rubber, I have simply put 2 washers, and already I have gained 0.5cm. For my notebook now the top product.