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:
8 Pcs x Battery Adapter