(12) 20 oz. Cans. Penetrating lubricant with four-way protection-flammable, with extender tube. MR. MECHANIC is a USDA authorized greaseless penetrating lubricant that provides four-way action: displaces moisture, lubricates, penetrates and prevents rust. This product is formulated with a light mineral oil blended in a petroleum distillate base with a corrosion preventative that will insure long lasting protection. Use it to lubricate and prevent corrosion of nuts, bolts, corroded parts, door hinges, locks, machine parts, gears, slides, wire cable, and other turning and sliding parts. A liberal application will loosen threads, tightened fitted parts, sliding and rotating parts, bolts, hinges and pins which have been "frozen" by corrosion. MR. MECHANIC forms a powerful, multiple-action protective shield against the harmful effects of moisture and corrosion. Ideal for garages, oil rigs, homes, machine shops, assembly plants, electronics repair shops, locksmiths, industrial shops, factories, and air conditioner repair businesses.