Features: Made of plastic material, and metal on the bottom, small, easy to carry. Battery Holder Converter: Convert size AA battery to D size battery. Easy to use, just stick the AA battery in the converter and it's the same as a D Size battery. They are also used as protector cases for your AA batteries, keep dry to store your batteries. Specifications: Color: Clear Size: 32mm x 59mm / 1.26 inch x 2.32 inch(D*L) Material: Plastic, Metal Type: AA size battery to D size battery Package Content:2 Pcs x Battery Adapter
