Description: The item is a set of 4pcs professional and practical battery adapter converter cases, which are specially used to convert any size AA to size C battery for use. Just put 1 AA battery into the converter, it will function the same as a C-size battery. Therefore, it is perfect for electronics and emergency situations. Features: 1. Made of environmental material, harmless to your health. 2. Small size, easy to carry. 3. Fine workmanship, standby specification, 1 x AA battery can be converted into 1 x C battery. 4. Large strength and strong toughness. 5. With battery limit slot to fix the battery in a good place. 6. Perfect for electronics and emergency situations. 7. Can convert any size AA battery to a size C battery. Specifications: Weight: 43g Quantity: 4 Material: Durable hard plastic. Color: Translucent white Convert any AA battery to a C battery Attention: Color may be little different due to monitors. Please take real product as standard, thanks for your understanding! Package included: 4 x Battery Converter Cases.