Otis Technology Advanced .223cal/5.56mm Cleaning System 8 inches and 30 inches memory-flex cables for effective 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 Compact easy to carry System to bring along while Breaking in a new firearm or barrel