A legendary name, rebuilt for the modern game. The Sigma Tour Pearl runs cleaner through the fronts with a fast-revving, controlled-yet-powerful backend shape. The Atomic Propulsion Pearl cover meets the classic Sigma core to sit perfectly between your benchmark solid and your wildest angular pearls.

It's the ideal in-between ball — cleaner than your benchmark, stronger and more controlled than a typical skid-flip pearl.

Who It's For

• Speed-dominant players — extra midlane traction when clean pearls push too far.
• Balanced bowlers — the angular complement to a benchmark that's too early or flat.
• House-shot bowlers — add a touch of surface and it's first ball out of the bag.

Ball Specifications

• Color: Dk Purple/Purple/Red Pearl
• Coverstock: Atomic Propulsion Pearl Reactive
• Weight Block: Sigma
• Factory Finish: 5000 Grit LSS
• Flare Potential: 5"+
• Radius of Gyration (RG): 16lbs - 2.46; 15lbs - 2.47; 14lbs - 2.51
• Differential (Diff): 16lbs - 0.044; 15lbs - 0.047; 14lbs - 0.040
• Intermediate Differential (Diff): N/A
• Fragrance: N/A

Backed by expert drilling, fast shipping, and the best prices on performance gear.