This Breakthrough Clean Microfiber Towel is a manmade blend of polyester and polyamide (a nylon by product) in a microfiber, cleaning/polishing cloth for cleaning gunmetal and stock finishes great for removing grease, oil, and dust. Safe on all surfaces and is washable. Comes with two 14-inch square microfiber cloths. Features: Cleaning & polishing cloth for cleaning gunmetal & stock finishes Great for removing grease, oil, & dust Safe on all surfaces & is washable Comes with two 14-inch square microfiber cloths