Magical boxes move without touching ?!

(Effect)
Show two boxes to your audience, allowing them to see the inside of each. The boxes appear to be nothing more than an ordinary pair of empty boxes with sliding drawers. However... when you place the boxes next to each other and close the drawer of one box, the drawer from the other box mysteriously opens!
To prove that there is no connection between the two boxes, you insert a playing card between them. The drawers still magically 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 each other!!

This marvelous trick is the invention of British magician Bob Ostin. In the original version, the magician needed to covertly remove the gimmick and hide it in his hand.
Tenyo has redesigned the trick so that the gimmick is completely built into one of the boxes.
The 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. It is extremely well camouflaged.

You'll be delightfully surprised at where the gimmick is hidden. And your audience will be astounded by this baffling magic.

The boxes have pictures of the Sun and the Moon. You can make a story as showing this magic effect, such as... "When the moon goes down, the sun rises up. The Special power between the sun and moon even affects these boxes"...