Hoppes UO Cleaning Rifle / Shotgun Kit box is made of durable polypropylene. Features include stronger hinge for longer life, double latch for sure, even closing and stronger rounded corners to prevent breakage. Hoppes 9 Cleaning Rifle/Shotgun Kit fits rifles and shotgun of all calibers and gauges.Kit Includes: - Hoppe"s No. 9 Solvent - Lubricating oil - Patches - Rifle rod w/ rifle and shotgun adapter - Slotted ends for rifles and shotguns