The Gun Boss Handgun Cleaning Kit is a complete system to keep your gun clean and firing accurately. Nylon jags, slotted tips and phosphor bronze brushes snap firmly and securely into the oil resistant tray. When you're on the move there's no rattling. And when you open the hand-sized, rugged case nothing spills out. And if the tray catches drops of oil? It wipes right off. The Gun Boss Handgun Cleaning Kit is a complete cleaning system that moves easily between the field, range and workbench..