Cue sports playing nine-ball. Snooker balls are smaller than American-style pool balls with a diameter of 52.5 mm ( in), and come in sets of 22 (15 reds, 6 "", and a cue ball). English billiard balls are the same size as snooker balls and come in sets of three balls (two cue balls and a red, an object ball). Other games, such as bumper pool, have custom ball sets. Billiard balls have been made from many different materials since the start of the game, including clay, bakelite, celluloid, crystallite, ivory, plastic, steel and wood. The dominant material from 1627 until the
2004 Grand Prix (snooker) 4–2, before Hawkins forced a deciding frame, which Fu won. Judge continued his run by defeating Campbell 5–4 with breaks of 76, 61, and 52, and said his victory over Williams had given him confidence. Although he fluked the final brown from a snooker, Wattana potted the blue and pink balls in the final frame of his match against Doherty to win 5–3. Doherty said "It was a cruel blow. ... I had James in a really good snooker and from where I was sat it did not even look as though he could hit it." Of the other seeds,