Black Stone Cube 40. The perfect choice for use at conferences or parties where a larger group of guests needs to be served quickly, simultaneously. Before serving, place the compressed napkin tablets in each water compartment, then pour some water over each tablet, the compressed tablets will then change to full-size refreshment napkins. The refreshment napkins are then ready to be served. When serving, we recommend using our wooden tweezer. For application of water we recommend our Frosted Conic Bottle. Black Stone Cube 40 can serve up to 40 people at once. Delivered in package with 1 piece.