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
Walter Donaldson (snooker player) of the World Snooker Tournament (21–16), before finishing 3rd of 5 players in the final table. Earlier in the same tournament he defeated Joe Davis, also by 21–16, but had received 14 start. He did however make the highest break of the season – 141. Later in life he converted his snooker room into a cowshed, breaking up the slates from the table to make a path, and died soon after snooker began its modern resurgence. His name could be found on series of snooker cues on sale until the late sixties and he was featured in the Joe Davis