Viper Billiard Master 2-1/4" Regulation Size Billiard/Pool Balls, Complete 16 Ball Set Complete set of 16 billiard balls Includes solid balls (numbers 1-7), striped balls (numbers 9-15), an 8 ball, and a cue ball Each billiard ball measures 2-1/4 inches in diameter, consistent with American style play Designed for maximum play consistency