Using this Westinghouse cooktop control knob is easy. Just gently turn it to adjust the settings on your cooktop. When using it, make sure to turn it smoothly to avoid any sudden jerks that could damage the knob or the cooktop. As for maintenance, you can use a soft, damp cloth to wipe the knob clean from time to time. If there are stubborn stains, you can use a mild cleaning solution. Remember, if you're not sure if this knob fits your cooktop, check with us before purchasing. We've got your back with 25 years of experience in supplying appliance parts.