This is a KitchenAid Mixer Replacement Part for the model KSM90 mixer.  This piece is the rubber or plastic coated dough hook that originally came with the mixer.  This piece does have a small fleabite to the coating on the outside base, but is still quite useable.  No additional flaws and no stains, rust or corrosion.  Measures approx. 6 inches long, including the base and attachment area.