This item is the most popular in all penetration items. Magician shows a clear plastic sheet in a frame. Now he put a visiting card or a playing card from deck in that frame between the plastic. Magician pushes a pencil between the card & sheet. The card supposed to be damaged. But when magician removes the card it is unharmed & intact. Magician can gave it to any one to examine the frame at any time of the magic.