Finally picked up 3 and got em' installed. They work great, just as advertised and reviewed. And as stated previously the supplied hardware is inadequate for most if not all installations. Simply too small for comfort. I had 3 guitars to hang with only one stud available and it was too deep in the wall to reach with any screw so I ended up, with some hesitation, using some 1 1/4" Dry wall screws with plastic anchors. Worked out great, even for the heavy Epiphone Electric. If installed correctly, they wont budge. Easy install and I couldn't be happier with the operation of the locking arms. Very user friendly. Highly recommended with update hardware.