Lokar Black Stainless Steel Housing Dipstick with Black Fittings for ford 351 Engine features black stainless steel housing. It's slim design allows mounting inside the headers. It is for use with factory or sanderson cast manifolds. It has an E-Z read flexible inner dipstick measuring cable. It is used for an accurate measure of engine oil. It is made in the U.S.A. It has a lifetime warranty.