Compare the specs of the Hammer Black Pearl Urethane and Hammer NU Blue Hammer 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 | NU Blue Hammer |
| Cover Name | Urethane Pearl 78D | Not Urethane |
| Cover Type | Urethane Pearl | Not Urethane |
| Box Finish | 500 SiaAir | 500 / 1000 SiaAir |
| Color | Black Pearl | Bad Ass Blue Pearl |
| Core Name | LED | LED |
| Core Type | Symmetrical | Symmetrical |
| RG | 2.650 | 2.586 |
| Total Diff. | 0.015 | 0.027 |
| Int. Diff. | 0.000 | 0.000 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |