The two grommets that affix the picture hanging wire to either side of the mirror are small and held on with a flimsy amount of metal.  One of them sheared off within 2 seconds of our mounting the mirror on 2 picture hanging hooks each rated 100 lb and sunk into a structural beam. I'm just glad there were 3 of us there to catch it when it fell otherwise it would have ruined my floor,.
Beautiful looking piece but apparently built without the functional detail enough to support itself as a hanging unit.  Maybe if you purchase with the intention of resting it on furniture it would work but who buys a wall mirror for that purpose? . Disappointing as this happened the night before a big party, leaving me with a very less than appropriate ;plan B.