This metal container is custom designed for this incredible magic trick. A glass of water, or any liquid, is poured into the metal container. A piece of cardboard is used to cover the opening while the whole thing is turned upside down. When the cardboard is removed, the water does not fall out!
Notice: This effect is self-contained. There are no secret plastic discs that have to be introduced or taken away from the container. You’ll love the working with this!