AMPM24 Oshen White Sport Fashion Led Multi-Color Backlight Lady Girl Plastic Watch Gift OHS001 Sold by AMPM24 Store. Package Includes: 1 x AMPM24 watch Multi-color in one Super LED light, bright, novelty and energy-saving. Rotating ring, you can use the watch as a chronograph. Case diameter: 40mm approx ((1 cm=10 mm=0.394 inch)) Case thickness: 13mm approx Band length: 24.5cm approx 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.