I bought the clip due to the good recessions. When wearing glasses, it is just not as comfortable to wear another glasses over the actual glasses. On the handling and mounting, there is also nothing to complain about. The disappointment, however, came at the first look at a 3D film. I wanted to clip on my 3D TV LG 47LM620S 119 cm (47 inches) Cinema 3D LED backlight TVs, EEK A + (Full HD, 400Hz MCI, DVB-T / C / S2, Smart TV, HbbTV) black use. Unfortunately, the 3D effect is but extremely poor and can not be compared as compared to the original supplied goggles and other eyewear reorder. Even a slight double image can be seen which is not there with all the other glasses I have. Have to say, therefore, that it was unfortunately an absolute bad buy. More than 1 star I can not forgive because really, if the real purpose of the clip, to watch a movie in 3D, do not really work. As well as the increased comfort benefits as opposed to the alternative glasses over glasses unfortunately nothing.