WD40 protects metal from rust and corrosion, penetrates stuck or jammed parts, displaces moisture and lubricates just about anything. But if like me you can never find the straw when you need to get into that awkward nook or cranny, then fear no more as WD40 is now available with 'Smart Straw' which means you will never lose the straw again! Smart straw stays permanently attached and allows for regular spray action when folded down then simply flip it up for a precise stream.No more lost straws with the WD40 'Smart Straw' systemLoosens rusted or jammed partsLubricates just about anythingDisplaces moisture