I've got 12 or so of these on my studio wall. They hold up everything and anything. From a little lightweight Mandolin to a very heavy Les Paul Custom.
The construction seems quite good. I wouldn't expect them to break any time soon. As long as you take care in the fitting process and make sure you have a good strong fixing, there should be no problems.
As I said, I'm hanging everything you can imagine with them. Electric and Acoustic Guitars, Bass Guitars, Banjo, Mandolin, coats, hats, shotgun etc. You name it and I've hung it from these wall mounts. The only thing I've had trouble with is a Steinberger Bass!!!
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