About the Development of the Product The material used in this product originally has elements that cause visual illusions and is also used in applications other than magic. When such a material is adapted for magic, even if the material itself is known, a twist is required that cannot be solved by the material alone. This is a transformation into entertainment that is enjoyable to watch, rather than a science magic that exposes the principles. The inventor added another mechanism with the theme of how to make the object gradually disappear from the edges, rather than making it disappear directly, thus achieving this strange and original phenomenon. Phenomenon - Two empty cups are shown. Salt suddenly appears from one cup. - The salt is shown to be transferred from cup to cup. - Finally, all the salt that appeared vanishes dramatically and turns into a white handkerchief. The salt that appears is, of course, real. The way the salt pours out of the cup is mysterious. It can be connected to silk magic performed in front of a large audience, such as at parties. Performance Video: https://youtu.be/rMEy9p8mTKw Product Contents: A complete set of props and instructions