The Belgian Aramith Tournament Champion Snooker Ball Set meets regulation standards measuring in at 2 1/16". This set comes complete with fifteen red balls, colored balls two through seven (without numbers) and a cue ball. Aramith produces the highest quality balls in the world. This set meets all professional quality specifications for roundness, weight, balance, density, color, gloss, diameter and even hardness. They also boast incredible endurance through a hardened vitrified surface and an ultra-high density for unmatched impact and scratch resistance..