This device will easily stir non-hydrogenated peanut butter in its original container without splashing oil. It does a perfect job of mixing with almost no effort and almost no cleaning. The mixing rod conveniently cleans itself upon removal from the jar! It comes out spotless. Really!! Enjoy natural, organic peanut butter without the mess or strain of mixing. An award-winning invention. This model fits lids of 3 inches in diameter.