CONVENIENT - The Battery Storage Case can help you storage the AA battery in your home,you don't need to worry about can't find them for you are scattering them round. ENVIRONMENTAL - It is harmful to the environment to discard scrap batteries directly,with these Battery Storage Case you could store them up and then deal with them together. USEFUL - Help you keep the batteries organized and stop them from getting lost. Perfect for electronics and emergency situations. Essential to keep some at home Inner Size: 56x 42x 19mm;Outer SIze: 60 x 45 x 21mm PACKAGE INCLUDE:1 x Battery Storage Case(Batteries are not included.)