The Chillsner by Corksicle is the perfect gift for the beer lover in your life. These ingenious devices keep your beverage cold from the inside, and still allow you to enjoy! Simply freeze the Chillsner for a few hours before use, then insert one into your bottled beverage. The vented shaft lets you drink from the bottle even while the Chillsner is inserted, so you can enjoy your icy cold beverage to the last drop. Corksicle Chillsner comes in a pack of 2, so you can keep one in the freezer and one in your bottle (or share one with a friend).