This ball has a small red dot on its surface. One advantage of the red dot cue ball is that it makes a great practice ball. You can use the dot as a target, and then compare your chalk mark with the position of the dot to see if you indeed stroke properly and hit the cue ball where you intended. The ball is regulation 2-1/4 in diameter and is regulation weight. It is made in Belgium by Aramith. For a smooth rolling ball, look no further than the Sterling Replacement Billiard Balls. It's one of our many pool table balls that will be sure to make your game play better.