Several gold dollars penetrate a brass block one at a time. This happens under the closest scrutiny from spectators - who can surround the magician as the effect is performed. The brass block is wedged in between two brass rings and the dollars are dropped on top. There is apparently no way for the coins to penetrate the brass plug. Yet that is exactly what happens. One by one, the coins filter through the block as if it were a sieve. Easy to do. Precision machined from brass. Complete with detailed instructions. A perfect pocket trick. Made in the USA by FUN Incorporated.