Features: Specially designed for the 146MT574 timer switches, ensuring seamless integration and stable performances. Use these replacement light switches knobs to enhances the functionality of your bathroom timer switches, suitable for controlling exhaust fans, ceiling fans, and heaters. Easy replacement of worn or damaged knobs, using our switches timer knob replacement parts can save time and money. By using these fan knob replacement parts, you can easily and accurately control your fan timer switches settings, designed for easily grip and adjustment. The light switches knob provides a convenient solution for maintaining the efficiency of the timing systems and ensuring long-term performances. Specifications: Component: Plastic Quantity: 1pc/2pcs/4pcs/6pcs Size: about 2.8x2.8x1.2cm/1.1x1.1x0.47inch Suitable for 146MT574 timing knob Package Includes: 1pc/2pcs/4pcs/6pcs Timer switches Knob note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.