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...We add water on the little white stones (CaC2) that you see in the plate at the beginning...that's the start of a chemical process that gives us a flammable gas...there is a hole on the top of the barrel...my friend put his finger on the hole for a while...then he removes his finger and I'm putting the flame on the hole where gas is going out...KABOOOM!!!
My chemistry teacher would be proud
Made in Yugoslavia 

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