Battery type: Button battery Dial shape: round Display type: pointer + number Thickness:about 13mm Dial diameter: about 35mm The full length of the watch:about 21cm Mirror material: plastic Strap material: PVC Case material: plastic Note: 1.Due to manual measurement, there may be an error of 1-3cm in product size. Please understand. 2. Due to different monitors, there may be color differences between the product images and the actual product. Please refer to the actual product color for accuracy.