Diamond Billiard Products 2 1/4" TV Cue Ball meets all the professional standards for density, balance, diameter, roundness, color, gloss, hardness, and weight, but it also boasts exceptional durability with its hardened vitrified surface and ultra-high density. While specifically designed to work in Smart tables, this cue ball can also be used with any 2 1/4" ball sets. Get your game on track with the reliable performance of the Diamond TV Cue Ball.