Bought this to go on a handpan ( Harmonic Art HuRing ).
Fits very nicely on the top, just the right size. Sounded 
just a tiny, tiny bit harsh/ loud for my current situation at first. 
Modified it with a rubber band around the body, split
60:40. Now it gives the benefit of slightly different sounds and is a 
little quieter. 
With the magnets it's easy to put in place & take off again as required. Hasn't left any marks on the handpan surface so far.
Seems well made, should hopefully last a tour even if the rubber 
band doesn't. For my current situation it's perfect.