Duracell Specialty 2025 lithium coin batteries are made with high-purity lithium for your specialty devices | They have up to 10 years of in-storage guarantee so you can be confident these lithium coin batteries will be ready when you need them | To help ensure the safety of your children, they have been designed with Baby Secure pack: Tamper-proof pack with double blister so that it is impossible for a child to open without scissors | They are suitable for use in keyfobs, small remotes, scales, wearables, sensors, medical devices (glucometers, digital thermometers), sports devices (heart rate monitor, bike accessories)