You show a large wooden cube with dots (like a dice) and a box with lid. A spectator can put the dice inside the box with any chosen number of dots on top or bottom and close it while your back is turned. You take back the box and place it on their handpalm.
You ask them to concentrate on the number of dots and after some concentration you exaclty reveal the number of dots! You now open the box and show that your prediction was correct. Everything can be examined now! Nothing to add or take away!
Beautifull made box and dice and a link to an instructional video is included. The box measures 7 x 6,5 x 6,5 cm and the dice itself 5 x 5 x 5 cm.