The performer shows a wallet with a small square in the middle. A mirror, attached to a ribbon is passed around for inspection, and then inserted into the wallet. A die (singular for dice) is also inspected. The die is placed in the square in the wallet, then, bit-by-bit, it very slowly sinks until it completely penetrates the mirror and drops to the floor. The die and mirror are once more passed round for examination. Tip: Best demonstrated when performed with hands slightly sunk in an upside down top hat.