Features: Securely store and protect your 21700 batteries with this waterproof storage case, ensuring they remain in top condition. Specifically designed for 21700 batteries, this storage box offers a secure and clean environment. Its tight seal effectively prevents dust and moisture, ensuring long-term use of your batteries. Suitable for users of 21700 batteries, including photographers, outdoor enthusiasts, and everyday electronics users. This storage box keeps your batteries ready for use in any situation. Carry this convenient battery storage box. It easily fits into your bag or pocket, making it perfect for travel, outdoor activities, and daily use. Never worry about losing or damaging your batteries again. With its durability and sealing performance, this battery storage box ensures organized battery management. Specifications: Component: Plastic Size 1: Approx. 76x25x25mm / 3x1x1in Size 2: Approx. 76x45x25mm / 3x1.77x1in Suitable for 21700 batteries 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 you do not mind before you order. Due to differences between monitors, the picture may not reflect the actual item color. Package includes: 1pc Battery Case