Blackball (pool) number "8" (a holdover from kelly pool), though numberless variants are not unknown. British pool tables come in 6 × 3 foot (1.8 × 0.9 m) or 7 × 3.5 ft (2.12 × 1.06 m) varieties, with 7 feet being the regulation size for league play. The table has pockets just larger than the balls and rounded, as in the game of snooker, whereas the international-style (or "American-style") table has pockets significantly wider, with pointed . Tournament rules may require the presence of more than one type of (mechanical bridge), as in snooker. There are two competing standards bodies that
Crud (game) the latter, when available) using the cue ball (the "shooter ball"), and one "object ball" (most commonly a striped ball since it is easiest to determine if it is in motion). Only the corner pockets are used on non-snooker or smaller tables. On these, the side pockets (if there are any) are blocked off, traditionally by rolls of toilet paper. Pool cues are not used; the shooter ball is launched across the table surface with the hand. A game of crud involves moving around the table and other players, trying to grab the shooter ball and either strike the object