No doubt about it — this one hooks. The No Doubt Solid features a Super Symmetrical core (2.48 RG / .051 diff) enhanced with the sensational HK22C+ cover and its traction-boosting Cohesion Additive, making it seriously responsive to friction. Super Symmetrical cores provide a wider range of after-drilling differentials, bridging the gap between symmetrical and asymmetrical balls. Between those core dynamics and the HK22C+ Solid shell, the No Doubt Solid is a strong, versatile piece for a huge range of players. Who It's For Benchmark players — a strong, versatile solid that reads a variety of oil. Drilling-savvy bowlers — Super Symmetrical range from symmetric to asym looks. Friction seekers — the Cohesion Additive makes it bite when it hits dry. Ball Specifications Color: Black/Red/Purple Coverstock: HK22C+ Solid Weight Block: No Doubt Symmetric Factory Finish: 500, 1000, 1500 Siaair / Factory Compound Flare Potential: High Radius of Gyration (RG): 16lbs - 2.496; 15lbs - 2.485; 14lbs - 2.501 Differential (Diff): 16lbs - 0.045; 15lbs - 0.051; 14lbs - 0.051 Intermediate Differential (Diff): N/A Fragrance: N/A Backed by expert drilling, fast shipping, and the best prices on performance gear.