Add razor-sharp precision to your game with Aramith's professional Super Aramith Pro Cue Ball. This is the ball most widely used by professional pool players in international tournaments. The Super Aramith Pro is made from a special phenolic resin, giving you superior rebound characteristics for the ultimate precision shots and repositioning. This billiard ball is manufactured and tested to the strictest calibration, sphericity, weight and diameter specifications in the world, while it's through-hardened vitrified surface guarantees exceptional longevity. 2.25" regulation size cue ball.