I’m glad to present you new Titanium hook style cello fine tuners.
Titanium hook weight is only 2 g (with screw and nut 3.4g) it is very light compared to regular not ConCarbo fine tuners
but heavier than ConCarbo mini levers. In return they are easier to use since they do not require removing strings during installation.
Complete built in set of 4 these fine tuners add 14-15 g to tailpiece weight.
You can see more information here https://www.concarbo.com/fine-tuners/#hook
I’m gladly inviting string instruments shops and luthiers for cooperation.

Georg Schegolsky