Sentry Tuf-Cloth packaged in an easily resealable Jar. Lint Free Cloth treated with Sentry Tuf Glide. Revolutionary protection against rust, friction and wear for knives, firearms and all kinds of sports gear. A superior alternative to oil and silicone rags that provides long lasting, lint free cleaning, lubrication and protection. Tuf-Cloth out performs the competition thirteen to one in any weather condition. Oil-Free lubrication, protection and cleaning. USA