Item Type: Watch Winding Box Material: Space aluminum, aluminum alloy Power consumption: USB plug in use Size: Approx. 11 x 13 x 16.5cm / 4.33 x 5.12 x 6.5in Weight: 1280 g / 45.2 oz(approx.) Package List 1 x Watch Winding Box 1 x Cloth 1 x English Manual 1 x USB Cable 1AUTOMATED FUNCTION: Watch winding box is designed with automated function, which automatically winds the watch without any manual operation required. 2EXTENDS WATCH LONGEVITY: Mechanical winder helps keep your watch running smoothly, avoiding overuse and extending the longevity of your watch. 3UNIVERSAL COMPATIBILITY: Watch winding box is suitable for all mechanical watch brands, including automatic and manual mechanical watches. 4EASY TO USE: Watch winding box operates with simplicity, requiring only the watch to be placed inside the box and the button pressed to automatically wind the watch. 5DURABLE CONSTRUCTION: Made with space aluminum, aluminum alloy, mechanical watch vibrator is durable and long lasting, ensuring reliable and consistent performance.