These are so much lighter and better made than the normal wittner steel fine tuners. The body of the tuner is smaller and better machined, the hook where the ball of the strings attaches is wide enough to accommodate all strings (my evahs silk wrapping required me to ply open the steel ones) and the entire tuner is a 5th of the weight of the steel ones. This means, you can put fine tuners on all strings and still end up with a tail piece that is lighter than a single E-string steel tuner. It's a worthy investment.Some details to be aware of, however:1) This tuner will not work on an older, thicker mahogany tailpiece. It is shallower than a steel one, and does not reach through the tailpiece to be mounted. So reserve this one for a modern, hollowed-out tailpiece -- which you should already have sprung for by now, even if playing on an antique violin.2) There is an even lighter option, a hill style titanium fine tuner, also made by the same company. If your tailpiece can accommodate it, it's worth getting it. Here again, an antique tailpiece will likely not have holes big enough to do that. Just understand that the Hill tuners are really made for loop strings, and a ball string will have to use the hole in the ball to mimic a loop. These wittners seem so much more secure if you're using ball strings.3) If you MUST have that old tailpiece, you can still save a significant amount of weight by using the old fine tuners but replacing the adjusting screw with the titanium one.Hope this mini-compendium of fine tuning helps!