GHS A87 Fast-Fret String Cleaner
GHS Fast Fret is a high-quality string and neck lubricant/string cleaner for all stringed instruments. Fast Fret is not a spray, and it contains no silicone. It's a liquid in an applicator. Use it on strings, fretboard, back of neck. Fast Fret lets fingers slide freely, keeps strings clean, and is good for wood.