The Marine Tuf-Cloth from Sentry Solutions features a special formula with additional ingredients to enhance protection against highly corrosive saltwater and high humidity. Use Marine Tuf-Cloth when your gear is faced with extreme conditions or for long term storage. Tuf-Cloths are made of a soft lint free fabric that is very durable. Measures 12" x 12" and comes in a resealable vapor-barrier pouch!