1256-7 6 1/4" (160mm) Chrome trim ring for cooktop. If the elements on your stove plug in and out and they are 6 1/4" and 8" in size (160 and 200mm), this trim ring will fit. (later model chef stoves have140mm ( 5 1/2") and 175mm (7") elements, but all others use these ones)
there are usually 3 small ones and one large one. this is the small trim ring.
Fits brands including chef, simpson, westinghouse, malleys whirlpool, and many others