The Efest Dual 2x700 Battery Case is designed specifically for 20700 and 21700 batteries, ensuring a secure fit to prevent accidental damage or discharge. Constructed for durability, it protects batteries in various conditions and reduces the risk of short circuits. Its compact design allows for easy portability in a pocket, bag, or vape kit, making it a practical accessory for vape users.

• Batteries are not included
• Fits 20700 / 21700 batteries