Form 65 Guitar Polish Kit. Dunlop's Formula 65 has become the standard daily-use guitar care product line for pro guitar techs, repair shops, and guitarists worldwide. The Formula 65 Guitar Polish Kit contains the best-seller Formula 65 Guitar Polish & Cleaner and Body Gloss Cream of Carnauba Wax. Also includes a polish cloth and instructions. Treat your instrument to the best: Dunlop Formula 65 care products.