Think Tank DSLR Battery Holder 4 eliminates the hassle of fumbling around through your camera bag searching for that extra battery. When the shot is there and you need power right away, this small, compact and efficient folding holder will help you get back up and shooting in no time. It's lightweight and can be stored easily in any optional Think Tank bag, pouch or skin. It features a fold-over flap with a touch-fastened closure and holds four lithium-ion DSLR batteries of standard size. For durability, it's made from rugged rip-stop nylon.