Round-the-clock hacking, slashing and slicing is sure to do a number on your everyday carry. And if you want to keep your knife working well and looking sharp, Boker Flitz Knife Polish has you covered. Suitable for metal, fiberglass, plastic and more, a single coat cleans and polishes while removing corrosion and other residue. Plus, it leaves a waterproof protective film to protect against potential water damage. To use, simply deal a dollop of paste onto a paper towel and briskly rub it into your knife. Then buff it out with a soft cloth (or the Boker Polishing Cloth - style #54852) and watch your knife come back to life. The anti-tarnish technology will keep your knife in prime condition for up to six months!