Mental Block Dice | Dan Harlan Antonio Fumarola Imagine using a pen throughout

Imagine using a pen throughout your performance

To his great surprise

Mark has used this in his own act all over the world

"Pretty freakin' sweet

Mental Block Dice | Dan Harlan Antonio Fumarola Imagine using a pen throughoutRead minds with stunning accuracy with a fully examinable prop that gets jaw dropping reactions. Dan Harlan's work on the color vision box destroys audiences, and now it's available with a gorgeous wooden die allowing for some truly impossible revelations. Here's what happens: 1. While your back is turned, the audience places the die in the box with the number they want facing up and closes the lid. 2. You are then able to immediately divine the