Made from high-quality lithium. A 10-year storage guarantee, ensuring that these lithium button batteries will be operational when you need them. With Child Safety technology featuring a sticker with a bitter taste on the back of the battery and child-safe packaging thanks to a double plastic shell that cannot be opened by a child without scissors. These batteries are designed for use in car keys, small remote controls, scales, connected objects, sensors, medical devices (glucometers, digital thermometers) and sports equipment (heart rate monitors, bike accessories)