I have over 20 of these and am about to order more. These work great for electric or acoustic and they claim that they will not harm the finish,only time will tell. So far, great product. I like these with rectangle base better because it is easier to level them.

I have installed four of these in my studio, and I'm fixing to buy and install four more. They come with mounting screws and nylon wall anchors, but I tossed those. Instead, I used the much more secure mounting provided by using 2.5" No. 8 drywall screws through the mounting holes and screwed directly into the wall studs behind the drywall. I would never trust drywall to support my instruments, but if you couldn't screw directly into the wall studs for some reason, I guess the nylon anchors would probably work OK, although in that situation, I'll probably mount a piece of 1 x 3 oak horizontally across the studs on the surface of the drywall. Then it would be easy to just mount the hangers directly to the oak with 1" wood screws or drywall screws.Anyhow, the hangers themselves are great. They hold my guitars and basses securely, and they rotate to accommodate the offset of, say, the standard Fender Strat, Tele, and P-bass headstock. Buy some right now!NOTE: This review pertains to the black hanger with the big knurled spacer between the forks and the mounting plate. The white one in the picture doesn't have such a spacer; consequently, it wouldn't work for an acoustic guitar, because it wouldn't hold the neck far enough from the wall plane to keep the body from resting against the wall.

Not one problem with this product, the only thing is, if you are using it for an acoustic of worth, plan on mounting it to a block of wood or something. Otherwise, the clearance from the hook to the wall isn't enough to keep the guitar from hitting the wall while trying to take it out or put it in. Other than that, a great product!

I've tried most of the popular hangers but this one really shines over ones with wood blocks. Makes the guitar feel much more stable, and has a classic look. Use the sheetrock anchors included, but I opt for a simple black 2-1/2" sheetrock screw (big thread) in lieu of those included with the package. Just a great product!