This is an Otis Tactical 5.56mm M4/M16 Cleaning System. Designed for .223 cal./5.56MM rifles. 8" and 30" Memory-Flex Cables for effective and correct Breech-to-Muzzle cleaning. Bronze bore brush removes copper deposits and other fouling. Specialized precision tools allow complete breakdown and detailed cleaning of your firearm. Lens cleaner, lens tissues and mohair lens brush ensure your optics are clean and clear. Dimensions of cleaning kit pouch - 4" x 4" x 2". Protect your investments - use Otis.