Features: Securely store and protect your 21700 batteries with this waterproof storage case, ensuring they remain in top condition. Specifically for 21700 batteries, this storage box case offer a secure and clean environment. Its tight seal effectively prevents dust and moistures, ensuring the long terms use of your batteries. Suitable for users of 21700 batteries, including photographers, outdoor enthusiasts, and everyday electronics users. This storage box case keep your batteries ready for use in any situation. Carry this convenient battery storage box case. Easily fit into your bag, pocket, making it perfect for travel, outdoor activity, daily use. Never worry about losing, damaging your batteries again. With its durability and sealing, this battery storage box case ensures organized battery management. Specifications: Component: Plastic Size1:Approx.76x25x25mm/3x1x1in Size2:Approx.76x45x25mm/3x1.77x1in Suitable for 21700 Batteries Case Option Type: Storage Case for 1pc 21700 Battery ,Storage Case for 2pc 21700 Batteries; Note: Please allow 1-2cm errors due to manual measurement,please make sure that you donot mind befores you order. Due to the differences between different monitors, the picture may not reflect the actual item color. Package includes: 1pc Battery Case