The Light & Heavy Chest is such a powerful effect that Robert Houdin claimed to have used it to stop a war in Africa. Now imagine having that power in your pocket. Once hypnotized, your spectator will feel as though your deck of cards weighs hundreds of pounds. This is Unliftable—The Light and Heavy Deck by Iñaki and Javier Franco.

Here’s what happens:

You place a card box on a marker on a table. Next, you hypnotize the audience and take away their strength. Although you casually lift the same deck over and over again, no matter how hard they try, they cannot lift it off the table.

You demonstrate once more that the deck is easy to pick up when you effortlessly lift it off the table. You then remove the cards from the box to show that there are no hidden magnets or electronics inside, and immediately move on to your next trick.

Unliftable is a specially prepared cardboard box that becomes impossible to lift unless you know the secret. No electromagnets, glue, or complicated gimmicks are required. All you need is a smooth surface, and you’re ready to go. The box does all the work for you and can hold a regular deck of cards so that after your strength-defying miracle, you can perform your favorite card tricks. Unliftable is ready to use right out of the box and comes with a simple tutorial so you know how to achieve the best results. Turn your deck of cards into the legendary Light & Heavy Chest with Unliftable by Iñaki and Javier Franco.