Hamilton Devices would like to proudly introduce the FIRST EVER Butterfly Knife design battery!
The Butterfly offers smooth and reliable flipping action that will keep you entertained for hours. It also comes in various colors that will add a sense of luxury when you carry this device to any occasion. No matter if you’re a righty or lefty, this battery will perform beautifully for you and your friends. You can’t go wrong adding this one of a kind battery to your collection.