This butterfly can opener is small and easy to store, making it great for camping or opening up room in your drawer. They are very easy to use and have a dishwasher safe construction for easy cleaning.Simply use your right hand to place the opener on the cap edge, rest the bent tab on top of the can, and pull up on the bottle opener bar while slowly turning the handle clockwise to wedge the cutter into the can lid. Every case contains 144 can openers, perfect for retailers to offer in their kitchen aisles.