The clips look very stable from (they are up to now), they are easy to open and close. The biggest little is too much distance hiss the top of the cable guide grooves and the piece of plastic, which closes the clip. So cable can in other grooves slip (you get so well over 5 cable in a clip). The included adhesive strips are completely unsuitable for attaching the clips to smooth wood (on other surfaces they have not been tested). This problem can be easily solved, however, by simply attaching the clips with hot glue.