The rifle and pistol maintenance system in the high-performance zipper storage box, the compact padded box with zipper can accommodate all the necessary cleaning tools, put all items neatly and firmly fixed in place. The length of the brass rod is 5.31 inches, which is long enough to clean the pen holder. The threaded end of the brush is screwed into the rod to secure it. The nylon-coated flexible long rod makes it easy to feed the brush into the barrel.