The AllPoints Foodservice Parts & Supplies 8009525 is a durable black knob featuring a white pointer, designed for easy visibility and precise control. With a diameter of 2 inches, it fits a .250-inch diameter shaft and includes two set screws for secure attachment. This knob is compatible with a variety of Duke models, including the 59 Series, Oven E Series, and several others, ensuring versatility across multiple applications. Ideal for replacing worn or damaged knobs, it enhances the functionality of your equipment while maintaining a professional appearance.