ECSiNG 6pcs Guitar String Ferrules Semi Enclosed Tuners Metal Sleeve Tuner Conversion Bushings Tuning Adapter Ferrules, Silver

Package: You will get 6 pieces of silver guitar string ferrules. Material: The guitar string ferrule is made of metal, strong and sturdy. Size: Inner hole diameter: 6.1mm; outer diameter: 10mm; total height: 7.6mm; top diameter: 13.9mm. Function: These guitar mounting ferrules can increase the pressure of the strings on the bridge, make the strings vibrate more effectively, improve the resonance and increase the delay, make the sound stronger. Note: Please be sure to verify the diameter of your tuner's post, These bushings are use for installing 6mm diameter shaft vintage tuning keys on modern 10mm tuner holes headstock.