WD-40 Smart Straw is a versatile multi-use product in a 300ml aerosol can. It features an innovative Smart Straw design that allows for precise application. This lubricant and penetrating oil efficiently loosens rusted parts, displaces moisture, and provides lasting protection against corrosion. It can be used to remove marks, dirt, and grease, and to free up stuck, frozen, and rusted metal parts. The Smart Straw is a permanent feature for more precise applications. WD-40 is also an excellent lubricant that can hold firmly to all moving parts.