Professional Piano String Measurer Tuning Tool Durable Gauge for Accurate

Tuning tool-- applied as tuning tool and measurer for piano chord and music wire.; Paint tools-- simple operation, convenient and quick to use, suitable for professional and personal use.; Piano accessory-- this piano string measuring tool will not damage the sound quality of the piano.; Metal gauge-- workmanship and materials ensure a and perfect details.; Piano wire sizes mm-- the edges are smooth and round, without burrs, and will not damage the skin.

What's in the box
1 x Electronic Tuners