Hi this is a tutorial video of pen through dollar. You will see a boy showing you a pen and a dollar both are regular, he shows you by testing, of course they seems regular an common tools. Then passing the pen through the dollar and then taking the pen out of the dollar and still the dollar is healthy with no tear and hole. The trick is in the pen, the pen has two sides, one top is separable and is magnetic so that will join to the pen easily and fast. For testing you will use the real side and then changing the cap of the pen I a way audience do not see.