Centennial Pocket balls are the standard of excellence in the industry. Made of premium grade phenolic resin, Centennial balls are exactingly ground and polished to exacting radial tolerances of 0.001 of an inch for absolutely true and accurate roll. Components are solid cast and vitrified, or heat fused, for a homogeneous molecular bond. A translucent ivory hue, lustrous color, and a unique dart identify Centennial Balls.