Features: Comfortable rotary button with stepless speed control, icon is simple and easy to understand. Made of high-quality flame-retardant PC material, resistant to high temperatures, easy to clean and does not deform. Compatible with most brands of ceiling fan speed controllers for installation or replacement. Simple, design suitable for various home decor styles. Frame provides strong compression resistance, stable and not easily deformed after installation. Specifications: Material: Plastic + Metal Weight: 80g Size: 8.6 x 8.6cm (3.39 x 3.39 inches) Color: White / Gold / Gray / Black Speed Regulation Power: 15W - 400W Working Voltage: 180V - 220V Note: 1. Please allow 1-2cm error due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the image may not reflect the actual color of the item. Package includes: 1 x Speed Adjuster