Micro-Bonding Oil-Free Shield, will not Attract Dirt. Oil-free technology provides a revolutionary upgrade from oil and silicone rags; delivers lubrication and protection for today's firearms, knives, tactical gear and collectibles. Developed on request from Navy SEALs – based on TUF-CLOTH but formulated with additional ingredients to boost protection against highly corrosive saltwater and high humidity. Delivers heavy-duty bonded protection- proven in combat but gentle enough for collectibles and exotics. Long lasting, lint-free impregnated durable cloth. Tested and Used by Navy SEALs.