Compare the specs of the Hammer NU Blue Hammer and Hammer Envy Tour 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 | NU Blue Hammer | Envy Tour Pearl |
| Cover Name | Not Urethane | HK22 – Envy Pearl |
| Cover Type | Not Urethane | Reactive Pearl |
| Box Finish | 500 / 1000 SiaAir | 500 / 1000 / 1500 SiaAir / Factory Compound |
| Color | Bad Ass Blue Pearl | Chrome |
| Core Name | LED | Obsession Tour |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.586 | 2.469 |
| Total Diff. | 0.027 | 0.034 |
| Int. Diff. | 0.000 | 0.013 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |