Material: Made of plastic and metal, ensuring durability. Size: Compact and portable, measuring 32mm in diameter for easy installation. Color: Stylish white color adds a touch of elegance to your watch winder. Voltage: Powered by a 3V power source, providing efficient energy for smooth operation. Rated Speed: Rotates at a steady speed of 8rpm, ensuring gentle and delicate winding for your watches. Note: Installation guide not included; professional installation is recommended. Please verify the item meets your requirements before use. Tips: Product design may vary slightly between batches, resulting in minor differences in appearance or color, which do not affect functionality. Package Contents: 1 x Watch Winder Motor. Other items not included. Note: Due to lighting and display differences, the actual color may vary slightly from the image. Measurement error allowed is +/- 1-3cm.