This is Chazpro’s improved version of Mental Die or Die-Cipher, which unlike the previous versions, allows you to divine the exact number the spectator is thinking of instead of narrowing it down to two and having you guess.

The basic effect uses three objects that are made of solid brass. A cylindrical case with a base and lid, and a die that is made of brass.

The spectator thinks of one of the numbers on the die and seals it inside the canister with their number facing up. After they hand you the canister you will be able to immediately know which number they are thinking of.

Comes complete with the canister (around 1.25” diameter and .75” high), die (around .75” square), and access to an online video tutorial.