We supply you three cards, with the pictures of a pair of Spirit Slates. These cards are chemically treated for the effect. When handled as detailed in the instructions, the writing appears in a prominent white chalk writing. And in moments, the writing vanishes.
The same cards can be used over and over again for 100s of uses. You get three cards for three different predictions, and lots of ideas. This is completely different to anything you have used before - you will be amazed at the way it works.