The black with green trim 8 AA Battery Holder from Think Tank provides you with a convenient way to always know you'll have fresh batteries on hand. This lightweight pack is made from rugged ballistic nylon that guards the eight AA batteries held in two rows of four. The pack folds in half, making it easy to stuff in your camera bag or luggage. When it's empty, it folds flat for even easier storage. It's backed by Think Tank's lifetime warranty against manufacturer's defects.