Specification:

Easy to use - just slide in the AA battery into the converter.
Can convert any size AA battery to a size C battery.
Perfect for electronics and emergency situations.
Made from high quality, durable plastic, help AA batteries provide long power life.
Save hundreds of C size batteries from entering landfills, protect environment and save your money.
Battery life (per recharge) will vary based on the application.
A cheap and effective way to get rid of C size batteries and C battery recharger.
They are also serves as protector cases for your batteries, be safe and dry to store your batteries.
These handy adapters allow you to use a smaller size battery as a larger battery.

Package include: According to your choice.