Storm X Factor Vertigo 14 lbs 15 oz Bowling Ball Purple Blue Reactive Resin. 15 lbs. single drill. 4-3/4” span. Product ID 2801 Brand Storm Perfect Scale Hook Rating 203.0 RG 2.470 Finish Matte Ball Color Royal/Violet/Black Lane Condition Medium-Heavy Coverstock Reactive Resin Ball Quality First Quality Performance Advanced Performance[6]