There are 16 types of billiard balls including 7 solids, 7 stripes, an 8 ball, and a cue ball. There are many brands of billiard sticks and chalk is needed to help prevent miscues. Common billiard games include 8 ball and 9 ball which are started by racking the balls, typically with the 8 ball in the center. Both men and women can be players, with good players practicing as many as 50 games per day.