AMPM24 Men's Sport Multicolor Blue LED Backlight Digital Date Alarm Black Rubber Watch LED034 Sold by AMPM24 Store. Package Includes: 1 x AMPM24 watch Various LED backlight available. Irregular shape of the dial, making this table look very personality. High quality and comfortable silicone strap. Watchcase Diameter: 4.6 x 4.1cm approx (1 cm=0.394 inch approx) Watchcase Thickness: 1.0cm approx Band Length: 23.5cm approx (Included the case) Color may not appear as exactly as in real life due to variations between the computer monitors and nacked eye color difference. For detail instructions of the watch, please access our website to download. The website address will show on the manual in your package. If any questions, please don't hesitate to contact us.