One ounce will thoroughly clean 10 records, front and back - twice the industry average! | A simple one step process - no rinsing required. | 40-year history of being the best record cleaning fluid on the market. Formulated by the late Toy Shigekawa: engineer, rocket scientist, and avid audiophile. | Proprietary commercial grade surfactants, which break loose and remove stubborn dirt, finger oils, smoke tar, grease and more. | An industry-leading, medical grade, quad-filtered deionized water base that ensures no residue is left behind. | The formulation is so pure, it does not go bad. Shelf life is at least 35 years. | Premium performance that isn’t available anywhere else.