Billiard table all six pockets), with rounded entrances and nearly parallel sides, like those on a snooker table. One tactical consequence of this design difference is that the jaws of the WPA-type pocket are often used exactly like a horizontal version of the backboard of a basketball goal, to rebound the ball into the pocket; this technique does not work on blackball tables, and even shots down the cushion into a corner pocket are more difficult. For tournament competition under WPA world-standardized rules (and league play under derived rulesets), the bed of the pocket billiard table must be made of slate no
Multiplying billiard balls third and fourth ball, all in the same hand. The magician will then vanish the balls, one at a time, until only one remains. Often, part of the routine involves the magician giving the impression that he is "passing" the balls through his body, in and out of his mouth, fingertips, and pockets. Sets of multiplying billiard balls are available from magicians' supply stores. The quality, size, material, and price of the balls can vary greatly and are dependent on the magician's personal taste. The balls are most frequently made of wood, plastic, or metal. From an article by Tom