For less than the price of a set of strings you can prolong the life of your strings and save a lot of money over time. Strings corrode because of the oils and acidity of your hands. It gums up the strings and deadens the sound. With Kyser String Cleaner you can clean your strings and bring them back to life, plus it lubricates the strings which makes it easier on your fingers as well as harder for the grime and sweat to stick to the strings. Works on electric, acoustic, or bass strings.