This works great. I had bought the thomann violin starter and this one had problems being put on the bridge. But I loosened the nails and tried to expand the spaces that allow the bridge to slide in them so the muter could slide deeper into the bridge. You get a much muted sound but the tone is obviously still there. You no longer see the bow but you can see where you're bowing. The only thing I found weird about it was the fact that it doesn't go all the way down, which is fine and for the price, it does its job really well.