Introducing fretboard 65 ultimate lemon oil, the latest addition to dunlop's world-famous line of guitar care products and the logical evolution of the 01 fingerboard cleaner and 02 fingerboard deep conditioner. fretboard 65 is specially formulated to clean away grime and return your guitars fretboard to its original luster, quickly and easily. apply a thin coating using dunlop spray applicator top, work the gunk free, and wipe clean. its that simple. and once the dirt is gone, fretboard 65 will help keep it away by providing an invisible sealant against stains and moisture. player tested, tech approvedfretboard 65 ultimate lemon oil will clean up the mess that the music business leaves behind.