Even if you don’t have the right size of battery, this will help. We’ve all been there. You need AA batteries for your remote, a toy, what have you, BUT you only have AAA on hand. That’s why I love this ever so genius find. It easily converts AAA batteries into AA for your convenience. You just slip them right in and they’re good to go. Such a wonderful gadget when you’re in a pinch. They are reusable, which makes them an even bigger must have in any home. LTKSaleAlert LTKFamily LTKHome