These will work with both hoop and ball end violin strings. For converting a traditional style violin tailpiece to one with Fine Tuners.
Violin String Fine Tuner Adjuster Hill Model Gold Tuner
Violin String Fine Tuner Adjuster Gold, Silver or Black (multi-listing) Tuner
Violin String Fine Tuner Adjusters. 4/4 or 3/4 Size Black / Gold Metal Tune
Violin String Fine Tuner Adjusters Silver Nickel Plated Chrome 4/4 3/4 Tuning
Wittner Hill Style Violin E String Fine Tuner Model 910014 - Nickel - UK Seller
Wittner Violin 4/4 String Fine Tuner Model 902 - Nickel - UK Seller