The D'Addario Fret Polishing System is the secret to making any guitar or basses frets shine like new. Contains 5 sheets of reusable fret polishing paper and includes a polishing template to place over the fretboard during polishing. Within minutes you can remove all the dirt, grime and corrosion from your frets that kills the tone and feel of your instrument. The Fret polishing system is one of the easiest ways to improve your instruments performance, tone, and appearance. From hydrating emollients toour fret polishing system, our rejuvenating fingerboard products will keep your instrument playing like new.