In 1927, Royal V. Heath marketed a magic effect called “The Di-Ciphering Trick” based on a math trick developed by Edmund Balducci. It consisted of these 5 dice cubes bearing a different 3 digit number on each face – 30 numbers in all. A spectator would roll the dice and the magician would quickly announce the sum of all the numbers. Quite amazing given that there are over 7700 different combination of numbers that could show on the 5 cubes. 

It took a bit of research for Creative Crafthouse to resurrect the dice pattern and associated magic effects. Rest assured: if you can do quite simple addition in your head you can used these dice with great effect. Made with the 7/8" dice having numbers deeply laser engraved. Available in the wood case shown in photo.