Increase the string smoothness, improve the touch feeling of the string, so that the string is smooth. Effectively remove the rust on the surface of
50ml String Oil, Guitar String Care/Cleaning/Polishing Accessories, Lubricant for Guitar, Ukulele
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D'Addario EJ11-3D 80/20 Bronze Acoustic Guitar Strings, 12-53, 3 Sets, Light : Musical Instruments
1 Fast & Easy Guitar String Lubricant