The Formula Sports Training Cue Ball is a 1 7/8′′ ball made from quality resin which provides exceptional scratch and impact resistance. The fully embedded 6 dots are good for players to easily pot and control the ball. It will help you learn how to strike the ball in the same spot and visualize the spin of the ball. A great training ball to improve your skills. Made of high-grade Polyester Resin, unique impact, wear resistant. The fully embedded 6 dots good for players easy to pot & control the ball. 6 spots that will help you learn how to strike the ball in the same spot, to visualize the spin of the ball. Great for game rooms, bars, sports match, leisure exercise, and players at all skill levels.