Balkline is the overarching title of a group of carom billiards games generally played with two cue balls and a red object ball on a cloth-covered, 5 foot × 10 foot, pocketless billiard table. The object of the game is to score points, also called counts, by a player striking their cue ball so it makes contact with both the opponent's cue ball and the object ball on a single stroke. A player wins the game by reaching a predetermined number of points. The table is divided by lines drawn on the surface, called balklines, into marked regions called balk spaces. Balk spaces define areas of the table surface in which a player may only score up to a threshold number of points while the opponent's cue ball and the object ball are within that region.