As written here several times: processing well Pastik stable mounting some technical skill not a problem. Since the wall brackets are mounted runs around, you have a little fiddle. I got the 1/4 inch screws Sechskan dazubestellt Since the supplied not fit and you would be the thread in the Boxe destroying thus no longer a guarantee of Logitech on the boxes. I 1A simply the hole with a 6 bit, drill drilled slightly and tightened with a ratchet nut by hand. The weight is not a problem set is also a bit fummlerei since the adjustment is below, but otherwise keep the holder very well the weight off.