A carbon dioxide canister emits a frosty cloud of CO2 that turns any glass from bummer to summer in seconds, and the extra-wide spout allows you to frost any sized glass you see fit. Ice-cold margarita. Yes. Freezing cold beer stein? Heck yes! Kiddie pool full of Bud Diesel? Actually... no, probably not. The froster clamps to any surface in your kitchen (or bedroom) and takes up as much space as a coffee maker. Hands down the best way to drink since the shower beer koozie.