Is this product for you? Great for almost anything and everything WD-40 has become an essential staple for any workshop, garage or household. Originally invented as a simple water dispersant, WD-40 has since been found to be excellent for everything from lubricating seized bearings to cleaning crayon from walls. WD-40 is also a great penetrant, able to unsieze hinges and joints with a few small bursts, and can even be used to cut through dirt and grease, whilst preventing further corrosion from occouring. Not only great for automotive use, WD-40 is ideal for use on bikes, skateboards, tools and doors, really anything with moving parts. This large 4 litre bottle is perfect for worksites where a simple can just isn't enough. When used with a spray applicator, this bottle can even prove to be a much more economical method of use than an aerosol can, not to mention better for an environment. Furthermore, this 4 litre bottle can also be used for soaking seized parts or components.