The strongest symmetric motion Storm had ever built. The Phaze II pairs innovative core and coverstock tech to prove once again that Storm leads bowling innovation. The fast-revving, supercharged Velocity Core smooths out the backend without over-reacting — no undesirable last-second movement, just clean, controllable power. TX-16 (Traction-X 2016) emerged from countless hours in R&D to become one of the finest coverstocks on the planet. This solid reactive blend leaves an incredible footprint on the lane, and the marriage of core and cover produces a truly dominant symmetric reaction. Who It's For Medium-heavy oil players — TX-16 solid digs in and reads strong without over-hooking. Benchmark seekers — the strongest symmetric Storm motion — controllable, powerful, repeatable. Rev-dominant bowlers — the Velocity Core revs fast and drives hard through the pins. Ball Specifications Color: Red/Blue/Purple Coverstock: TX-16 Solid Reactive Weight Block: Velocity Core Factory Finish: 3000 grit Abralon Flare Potential: High Radius of Gyration (RG): 16lbs - 2.48; 15lbs - 2.48; 14lbs - 2.53 Differential (Diff): 16lbs - 0.051; 15lbs - 0.051; 14lbs - 0.050 Intermediate Differential (Diff): N/A Fragrance: Red Velvet Cake Backed by expert drilling, fast shipping, and the best prices on performance gear.