NEVER USED: The beer-lover-inspired Frosty Beer 2 Go from ASOBU is the ultimate cool tool to keep your favorite bottle of beer frosty cold. Vacuum-insulated, double-wall stainless steel technology insures that your favorite bottled beer will remain frosty cold for up to 6-hours, regardless of the outside temperature. All North American domestic beer bottles, Central/South American, Caribbean, European, and Australian beers fit in the Frosty Beer 2 Go including the popular Corona. Beer cans are also welcome. The Black Frosty Beer 2 go comes equipped with a bottle opener in the top.