Is your knife getting kind of grimy or is it not opening or closing easy. Well don’t worry all you need to do is clean it with some Benchmade Blue Lube Cleanser 983901F. They sometimes say you get more with less. Well that is the case with this 4 oz. bottle. You only need a little bit of it to get your knife clean or to lubricate your knife. Blue Lube also helps with preventing rust and corrosion.