Storm Typhoon Bowling BallColor: Royal/Purple/SteelCoverstock: Reactor Pearl ReactiveWeight Block: Atmos A.I. CoreFactory Finish:Power EdgeFlare Potential:MediumRadius of Gyration (RG):16lbs – 2.53; 15lbs – 2.53; 14lbs – 2.53Differential (Diff):16lbs – 0.042; 15lbs – 0.042; 14lbs – 0.039Intermediate Differential (Diff):N/AFragrance:Grape PunchAdditional product information: