WD-40 Multi-Use Product is, without a doubt, the original all-round essential. It displaces moisture, so it can be sprayed on machines and mechanisms to protect them from rust and corrosion.The liquid can also penetrate stuck parts or components, lubricating almost anything. It’s useful for freeing up sticky mechanisms, and in addition eliminates squeaks and creaks. As a result of WD-40’s unique formula, it is even great at removing grease, grime and more from most surfaces.