Size is 2 1/4 ".

Weight (169.5g +/- 0.5g)

High-quality phenolic resin from Diamond Company.

These balls use 85% pure phenolic resin to insure a long and stable life. They are manufactured with extremely tight tolerances and the highest level of quality.

Note: This ball set includes:

- (2) cue balls that have multiple dots and squares for viewing the spin on the cue ball. Both are the same and (2) are included so both players have a cue ball to lag with in competition.

- Then there are (3) additional object balls with oversized numbers and the Hyperion logo on them that are called "money balls" and they are used for the final ball in each game (nine ball, ten ball, and eight ball).

-15 balls solid & Stripe

-Total of 20 balls in a box