Features: High-quality comfort rotating knob with stepless speed regulation for smooth and effortless operation. Made from high-quality flame-retardant PC material, offering high temperature resistance, easy cleaning, and resistance to deformation. Compatible with most brands of ceiling fan and electric fan speed controllers for installation and replacement. Sleek and modern design suitable for various home decor styles. Cold-pressed steel frame structure ensures close alignment with the panel, providing durability and easy installation. Package Includes: 1 x Speed Adjuster Specifications: Material: Plastic Weight: 90g Size: 8.6 x 9cm (3.39 x 3.54 inches) Color: Black / Gold / Gray / White Load Power: 300W Rated Voltage: 50Hz / 220V Note: 1. Please allow 1-2cm measurement deviation due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the actual color of the item may vary from the image shown.