The delivery took longer than gewöhlich despite Prime, but this was due to DHL. Delivered the holder incl. A wide selection of fixing material in a plain white box. Processing holder is good. The plastic parts are cast accurately and I could see no burrs or the like. To that extent I was initially completely convinced.
When attaching the speakers took place then the disillusionment: the boxes meienr home theater system does not fit with the holders. Either press the retaining plate on the terminals or -at a 180 ° -Drehung- project further over the boxes out. In the inverted mounting the thread of the box are also not available, so I had to carefully drill the boxes housing and screw.
Conclusion:
Very convenient and well-made alternative to expensive mounts. The lack of compatibility with my boxing brings but clearly deductions. With favorable boxing as my you could to rig it, but at high end boxing I would have returned the holder unused.
I want to highlight positive but that included sufficient mounting hardware. Ie different lengths of screws, nuts, washers, and mounting hardware for wall mounting.