Murphy's Magic is proud to present the official Mental Die by Tony Anverdi! As the holder of the rights to Mental Die created by Anverdi in 1976; Murphy's Magic has produced the most up-to-date, innovative version available. BASIC EFFECT: You hand out a single die (choice of white die with black dots or black die with whit dots) Even though your back is turned, you know with 100% confidence which number has been chosen on the die. This classic effect has been 100% upgraded with today's modern technology and materials. However, the possibilities are endless. Way beyond the typical "I know your number" routines. And we included some creative routines to get you started.