This is the top of the line set from Aramith in Belgium. Made of the patented phenolic material that the Saluc company developed almost 50 years ago. This set has the 6 red dots on the white and yellow balls which allow you to see every spin of the ball and help improve your understanding of the game. Professional size 61.5 MM diameter Includes the Red, Yellow, and White balls The 6 spotted white and yellow balls for optimal view of the spin used in the 3 cushion game.