Blonde Girl Playing At The Billiard Table

Pockets, usually rimmed with leather or plastic, may have leather bags to catch the balls, common in home billiard rooms and pool halls, or (most commonly in the coin-operated tables found regularly in bars/pubs) may lead to ball-return troughs inside the table, which channel the balls into a collection chamber on one side of the table (or, in non-coin-op models, on the racking end of the table). A disadvantage with pockets with bags is that if too many balls go into the same pocket, it will fill up the bag and prevent any more balls from going in that pocket.
The bed
For World Pool-Billiard Association (WPA) tournament play, the bed of the pocket billiard table must be made of slate no less than 1 inch (2.54 cm) thick. The flatness of the table must be no greater than +0.020 inches (0.508 mm) lengthwise and +0.010 inches (0.254 mm) across the width.