This set of four electric guitar knobs is a vintage treasure from the 1950s era. Made of bakelite material, these knobs were originally used on Kay and other guitar models. Crafted in the United States, these knobs boast a quality that is hard to find in modern guitar parts. They are perfect for restoring a vintage guitar or adding a touch of classic style to a newer model. These differ only slightly from some others I have listed mainly in that they do not have set screws. For split shaft press on pots. I have a few more I may list as well. They all look the same. Thanks for looking and expect You will like them on Your guitar.