GHS Fast Fret is a string and neck lubricating cleaner supplied in a handy container with applicator and rubbing cloth. Fast Fret brightens your sound whilst prolonging fretboard life and, best of all, it lets you play faster! An ideal accessory for all stringed instruments., Prolongs fretboard life and lets you play faster , Prolongs string life & brightens sound , Contains lubricant that reduces friction. An ideal accessory for all stringed instruments!