The LOCKING PEN THRU is the "perfect" stealth weapon for your magic arsenal. From your jacket or shirt pocket, you remove an ordinary looking ballpoint pen. Ask to borrow a bill from someone, and then proceed to stab the bill with the pen. You can show that the pen has clearly pierced the bill. When the pen is removed, bill is returned to its owner undamaged. HIGH QUALITY--LOCKING TIP--USES ONE PEN-EXAMINABLE--TEACHING DVD INCLUDED Because of the unique locking feature of this pen, only one pen is used. Taught by professional magician, Steve Branham, the effects on this DVD are easy to do and can be immediately repeated. At the end of the trick, you can hand the pen out.