Compare the specs of the Hammer Black Widow Mania and Hammer Black Widow Ghost Pearl side by side in the ball comparison table below. To view the full bowling ball review for one of these balls, click the ball name link in the table below.
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| Brand | Hammer | Hammer |
| Ball Name | Black Widow Mania | Black Widow Ghost Pearl |
| Cover Name | HK22 - Cohesion Pearl | Aggression Pearl |
| Cover Type | Reactive Pearl | Reactive Pearl |
| Box Finish | 500 / 1000 / 1500 SiaAir / Factory Compound | 500 / 1000 / 1500 SiaAir / Crown Factory Compound |
| Color | Cobalt / Black | White |
| Core Name | Gas Mask | Gas Mask |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.500 | 2.500 |
| Total Diff. | 0.058 | 0.058 |
| Int. Diff. | 0.016 | 0.016 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |