http://www.dreamssmokeshop.com/product/knockout-ko-beerbong/
There's nothing quite like the Knockout KO Beerbong. With the Knockout you can chug a full bottle of beer and watch as the bottle simultaneously fills with thick, velvety smoke. Once you’re done with your beer, you can flip the bottle over and inhale the smoke back through the mouthpiece!! BOOM KNOCKUT:)
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