Features: Specially designed for the 146MT574 timer switches, ensuring seamless integration and stable performance. Use these replacement light switch knobs to enhance the functionality of your bathroom timer switches, suitable for controlling exhaust fans, ceiling fans, and heaters. Easy replacement of worn or damaged knobs; these timer knob replacement parts save time and effort. These fan knob replacement parts allow easy and accurate control of fan timer switch settings, designed for comfortable grip and smooth adjustment. The light switch knob provides a convenient solution for maintaining the efficiency of timing systems and ensuring long-term performance. Specifications: Component: Plastic Quantity: 1 pc / 2 pcs / 4 pcs / 6 pcs Size: Approximately 2.8 x 2.8 x 1.2 cm (1.1 x 1.1 x 0.47 in) Compatible with 146MT574 timing knob Package Includes: 1 pc / 2 pcs / 4 pcs / 6 pcs timer switch knob Note: Please allow 1–2 cm measurement variation due to manual measurement. Colors may vary slightly due to monitor differences.