Storm Bowling Balls. The Diablo™ has unleashed a sinister new weapon for the new Storm Fire Line™. Within the depths of its Reactor™ solid reactive coverstock lies the powerful Twin V™ weightblock that produces a soul crushing reaction. Make all pins pray for mercy. Give 'em HELL. Fire DiabloCoverstock Reactor Solid ReactiveWeight Block Twin VBall Color Fire OrangeBlackBall Finish 800 grit MatteRadius of Gyration 2.54 mediumDifferential .049 medium highDurometer 74 76 Rex D ScaleFlare Potential 5medium highFragrance Red Hot Cinnamon