Compare the specs of the Hammer Black Pearl Urethane and Hammer Anger 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 Pearl Urethane | Anger |
| Cover Name | Urethane Pearl 78D | HK22 - CT Reactive Flip |
| Cover Type | Urethane Pearl | Reactive Pearl |
| Box Finish | 500 SiaAir | 500 / 1000 / 1500 SiaAir / Factory Compound |
| Color | Black Pearl | Black / Red / Caramel |
| Core Name | LED | Modified Infamous |
| Core Type | Symmetrical | Symmetrical |
| RG | 2.650 | 2.567 |
| Total Diff. | 0.015 | 0.049 |
| Int. Diff. | 0.000 | 0.000 |
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