The GHS Gorgomyte Fret and Fingerboard Cleaning and Conditioning Cloth works on both your frets and your fingerboard. Developed by world-renowned guitar tech Jimmy Johnson, the Gorgomyte cloth is used by professional guitar techs everywhere! Here"s how to maximize your use of Gorgomyte Cleaning Cloths: cut the polishing cloth into 2" squares. Use one square for the entire neck. Store the remaining squares in the resealable bag for future cleaning and conditioning. The frets and fingerboard of your guitar get more hands-on use, and often abuse, than any other area of the instrument. The fine wood gets gummed up with finger oils and dirt. The frets collect these impurities too, making them dull and less than smooth.