Sturdy and Durable: The AEZ73453509 burner knob is made of high-quality materials, ensuring long-lasting durability and reliable performance for your stove. Precise Dimensions: The mounting hole diameter (D-shaft dimension) of the AEZ73453509 knob is 6.23 mm with a width of 5.52 mm, as shown in the dimension drawing. It is important to measure the size of your burner insert to ensure a perfect fit. Please note that this item only includes one replacement knob AEZ73453509, not a set. If you need to replace multiple old knobs, additional units are required. Improved Design: The Turnegoo AEZ73453509 stove knob features an improved design based on extensive market research. Made with polybutylene terephthalate (PBT), it offers corrosion resistance, heat resistance, and reinforcement, ensuring durability, stability, high compatibility, and easy installation. Efficient logistics and cost reduction. Wide Compatibility: This spare part with part number AEZ73453509 is also compatible with spare part numbers AEZ73453501, AEZ73453502, AEZ73453503, AEZ73453508, AEZ72909007, AEZ72909008, AEZ729090908, AEZ7, AEZ70909, AEZ73093308, AEZ73453514, AEZ73453524, AEZ73453525, AEZ73453526, AP566973, PS7321756, EAP, 7321756 and more. Easy Installation: The stove burner control knob is designed for easy installation without the need for tools, allowing you to get your stove working again in minutes.