Using this Westinghouse control knob is easy. Just turn it to adjust the oven thermostat, selector switch, or timer as needed. When installing, make sure the flat side of the shaft is lined up with the pointer. Before purchasing, double - check your oven's model number to ensure this knob is the right fit. There are similar - looking parts, so getting the correct one is important. To keep the knob in good condition, clean it regularly with a soft, damp cloth. Avoid using abrasive cleaners that could damage the surface. If you have any issues or questions, feel free to reach out to us.