Smart Straw - Never lose the straw again. Spray/Stream. Stops squeaks. Removes & protects. Loosens rusted parts. Frees sticky mechanisms. Drives out moisture. Countless uses - On the job, at home, on the farm, and in recreation. Lubricates moving parts such as: Hinges; Wheels; Rollers; Chains; Gears. Protects against rust and corrosion, items like: Tools; Firearms; Sporting Equipment. Penetrates to free stuck, corroded parts, like: Nuts; Bolts; Valves; Locks. Displaces moisture to restore wet or flooded equipment, such as: Engines; Spark plugs; Power tools. No CFCs. Propellant: CO2.