Show two matchboxes to the audience, allowing them to see inside each box. To all appearances, the boxes are nothing more than an ordinary pair of empty boxes with sliding drawers.
However, when you close the drawer of one box, the drawer of the other box mysteriously opens! To prove that there is no connection between the boxes, you insert a playing card between them. The drawers still open and close as if by magic!
For a surprising finish, the boxes are completely separated from each other and they still move in sympathy with one another.
Our new gimmick is cleverly hidden inside the construction of the boxes, so there is no need to hide anything in your hands, or remove at the end of the trick. The secret is extremely well camouflaged. You'll be delightfully surprised at where we've hidden the gimmick. And your audiences will be astonished by this baffling magic.