The magnetic card can be used for a variety of card and coin effects. A double thick card that looks like a single card when handled properly, even up close. It contains a very thin and powerful magnet, that will easily hold steel core quarters and half dollars, or magnetic coins and shell coins. One effect is this: The card covers the mouth of a drinking glass. A coin is borrowed and tapped against the card and it visually penetrates the card and falls into the glass. In another effect, a nickel is tapped with the card and it changes into a dime or mini nickel. This is a magical accessory and includes just the magnetic card. Detailed routines can be found in many magic books and DVDs. You provide the coin props for routines. Listing is for (2) red Bicycle Poker Size Magnetic Playing Cards. Blue cards listed separately. Contact us if you want mixed colors.