Hammer Black Widow Viz-A-Ball Bowling Ball

• Color: Grey

• Coverstock: Polyester 

• Weight Block: Asymmetrical

• Factory Finish: Crown Factory Polish

• Flare Potential: High

• Radius of Gyration (RG): 16lbs - 2.50; 15lbs - 2.48; 14lbs - 2.51

• Differential (Diff): 16lbs - 0.049; 15lbs - 0.058; 14lbs - 0.058

• Intermediate Differential (Diff): 16lbs - 0.012; 15lbs - 0.013; 14lbs - 0.013

• Fragrance: N/A

Additional product information:

This exciting ball provides the hitting power and flare the core offers and takes the Widow polyester line to the next level with full Black Widow images. Spare balls with a performance core have been popular for bowlers who want a harder-hitting spare ball or a ball for extremely dry lanes. Never before has a Viz-A-Ball featured a high- performance core, and there's no better core or line to launch such a fantastic product.