This is the Hoppes 24010D, also known as Hoppe\'s BoreSnake Den. This compact case, complete with a built-in handle, provides the perfect storage solution between firearm cleaning sessions. Its small size makes it an easy addition to your range bag or backpack, so you can ensure that your Boresnake brushes are protected during transport. In addition, the lid serves a dual purpose, doubling as a handy pull handle that flawlessly snaps into the clear case when not in use.As an all-in-one solution, the BoreSnake features an inbuilt bronze brush to efficiently remove carbon fouling. The tail of the BoreSnake is designed to clear the barrel of any loose debris, boasting a surface area that\'s 160 times larger than a traditional patch. The compatibility of this model extends to the 17/17 HMR rifle calibers.