Product Description Features: Brand new, high quality Provides stable and reliable power supply to ensure long-term correct operation of the watch. With a capacity of up to 68mAh, it can provide power for a long time and extend the life of the watch. Uses zinc-manganese dioxide composite technology to provide stable voltage output. Button design, easy to install and replace. Lightweight and portable, suitable for watches of various sizes. These batteries provide long-lasting durability for backup power, while being temperature resistant and having excellent storage capacity. Specifications: Material: Composite Type: 100 pcs Capacity: 68mah Note: 1. Please allow 1-2cm errors due to manual measurement, make sure you do not mind before you order. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: