JY Cello Fine Tuner – 4/4 Size String Adjuster

The JY Cello Fine Tuner for 4/4 size is a precision adjuster designed to make accurate tuning easier on full-size cellos. It allows small, controlled pitch adjustments at the tailpiece, helping players achieve stable tuning without relying solely on pegs.

Built for compatibility with standard cello setups, it is suitable for steel or synthetic strings depending on configuration. The compact metal design ensures secure string tension control and consistent response during tuning.

A practical replacement or upgrade part for student and intermediate cellos requiring reliable fine tuning stability.