Features: *High Quality Material: This product is made of high-quality material, which is wear-resistant and durable, can be used for a long time. *Compact: The watch battery tester is fairly lightweight, with a mini size, and easy to carry. *With this battery tester, you can know your battery is good, low, or needs to be replaced. *Fast Checking: Simply place a battery into the decent battery detector, it will shows you quickly the status of your batteries39; health by the using bar. *Easy-to-use analyzer shows what you need to know about your battery's health, it will accurately shows whether the battery is in poor, weak, or good condition of voltage. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Plastic Size: 5.5*2.8*10cm Package List: 1 x Button Cell Battery Checker