Introducing: The BeerGunner - Party Button™. This ingenious patented can-punch device makes shotgunning beer a snap — in seconds flat, without hassle and mess (whether a full can, half can, or the tail end). All you do is insert your favorite lager into the koldie, open the can and lift to your lips, then press the spring-loaded trigger and all the beer will slide down your throat. It’s AWESOME AF. Great whenever and wherever getting loose is a good idea.