This on-the-go pack is designed to go with you, so if you have trouble with your firearm, you can clean it without having to leave where you are, no matter where you are. It has 6 brushes to clean a: .22, .270, .30, .38, .45 cal. rifles/pistols, and 12/10 ga. shotgun. It also comes with some cleaning cloths, a visibility tool, breach wires, and assorted heads for the desired cleaning pads.