Die Box - Collector's Clever Die Box by Magic Makers

Begin by showing all 4 sides of the Die Box, then a solid yellow square block. 

Now put the solid block inside the empty Box and close doors. 

Slide the Block to the left and open the right door. It's gone! Close the door, slide it to the right and open the left door. It's really gone.

They see you tilt the box, they hear the cube slide and hit the other wend with a thud. They know it's not gone, they know its behind the other door.

You decide to help out the audience and open the doors. 

This will be easy, they think. 

Open just one door at a time for even more fun and jokes. 

Upon opening all 4 doors, and removing the side panels there is no question the block really has  VANISHED! 

You can produce the vanished Block from a top hat or below the table