Product Description The new Storm PhysiX Blackout bowling ball combines a familiar legacy with refined, cutting-edge technology. Built for demanding conditions, its NeX Pearl Reactive coverstock is dialed in for high-viscosity environments, delivering a powerful connection between the ball and the lane. This design gives bowlers an impressive blend of control and grit. Part of the esteemed PhysiX lineage, the Blackout stands out as a bold, reliable choice for bowlers who prefer a ball that revs up and showcases dynamic flare potential.Color: Blackout*Please note that colors may slightly vary from image shownCoverstock: NeX Pearl ReactiveWeight Block: Atomic A.I. CoreFactory Finish: 2000 Grit AbralonFlare Potential: 6″+ (High)Radius of Gyration (RG): 2.47Differential (Diff): 0.055Intermediate Differential (Mass Bias): 0.018Fragrance: PineappleWeightRGDiff.Interm. Diff.162.470.0560.018152.470.0550.018142.520.0540.016132.560.0340.011122.580.0310.009