Features: Made of plastic material, and metal on the bottom, small, easy to carry. Battery Holder Converter: Convert size AAA battery to AA size battery, and AA size battery to C size battery. Easy to use, just stick the AAA battery in the converter and it's the same as a AA battery. They are also used as protector cases for your AAA, AA batteries, keep dry to store your batteries. Specifications: Color: Clear Size: 13mm x 50mm / 0.51 inch x 1.97 inch(D*L); 25mm x 49mm / 0.98 inch x 1.93 inch(D*L) Material: Plastic, Metal Type: AAA battery to AA battery, AA size battery to C size battery Package Content:3 Set x Battery Adapter
