There are just sometimes when drinking a beer is too slow, and this device provides a great solution for that issue. The shotgun key chain fits easily into any pocket and delivers an instant, perfectly cut hole in the can from which to chug. Simply hook the key chain up on the bottom ridge of the can and rotate the wrist. This will provide you with a perfect hole for shotgunning, If you do not know what to do from there, maybe this key chain is not for you. But if you are salivating at the thought of tipping that can up and getting a good jump on your buzz, this is a perfect tool for your quiver.