Keep your batteries safe and secure with the Efest Dual 21700 Battery Case!

Each little tube you see pictured here comes out individually, and the best part is the satisfying *pop* when you open an empty slot. They hold fast like champions regardless of their funny noises.

Specs:

• Compatible with 20700 or 21700 batteries
• Holds 2 x 20700/21700 batteries

What's the box:

• 1 x Efest Dual 21700 Battery Case