The Bonmusica has a good fit and sound, but the metal screw parts look cheap and shiny, so I covered them with 100-yen yarn. I think it would be good to replace it with your favorite, cuter string and customize it. Also, I'm concerned about the contact between the metal parts and the instrument, so wrapping the whole thing with leather string or something similar would increase the sense of security, wouldn't it? Photo 4 is a demonstration of how it looks when attached. The viola is not included.