To replace the existing knob, first carefully remove it from your appliance. Once removed, attach the new knob securely in its place. This control knob is designed to ensure precise timing for both washing and drying cycles, significantly enhancing the overall performance and efficiency of your appliance. With its easy to use design, you can easily adjust the settings to meet your specific laundry needs. This replacement knob is compatible with a wide range of semi-automatic washing machines, making it a versatile and essential accessory for maintaining optimal functionality. The package includes four knobs, providing you with spares for future use. Features -Color:White -Material:Plastic -Size:4.50X4.50X3.50cm/1.77X1.77X1.38in -Effortless control: the semiautomatic washing machine switch offers an easytouse control system, simplifying the laundry process -Flexible timer settings: the universal timer knob allows for adjustable washing times, catering to different laundry needs and ensuring cleaning -Efficient water extraction: the feature removes excess water from clothes, speeding up the drying process and improving efficiency -Dualtub convenience: the dualtub design allows for simultaneous washing and spindrying, enhancing productivity and saving time -Durable design: this product is meticulously designed and crafted, ensuring durability and consistent performance for all your laundry tasks Package list: 20 x Washer Control Knob