Looks just like smoke
Safe to use
Function: The magician put the thumb and forefinger gently rub together, smoke will be rising from between two fingers
How to Use Magic Smoke From Hand : Tear off a small piece of, on the one coin with the lighter lit, then blows away the ashes, after burning leaves yellow oil on the coins, finger to fingers to rub oil, can be emitted thick smoke.
10/20 X Magic Smokes