I have just bought a pair of these brackets (actually from Currys Partmaster, a little cheaper than Amazon), and I had to have these as my loudspeakers (Spendor BC1s) are too wide for the only other readily-available bracket of this kind, the B-Tech BT77s. I haven't seen the B-Techs, and I suspect they may be a bit more robust, but there is nothing flimsy about these brackets, and the weight of my Spendors is well within the rated maximum for the AVFs, which is 44lbs. The kit comes with everything you need to install the brackets, clear instructions and a ten-year guarantee. The mounting screws supplied are No. 8 x 1.5", and I think No. 10 x 2" or 2.5" would be more secure - especially if, like me, you have to fit the mounting plates onto an internal breeze-block wall. The holes in the mounting plates will certainly take No. 10 screws. As shown in the illustration the mounting plates are hidden by a neat cover, and the brackets move on a wide horizontal arc with the facility for some downward adjustment in the vertical plane if your speakers are to be mounted high up. I have yet to install these brackets, so I cannot judge them acoustically: this is just an interim note.