Compare the specs of the Hammer Flawless and Hammer Black Widow Black/Gold 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 | Flawless | Black Widow Black/Gold |
| Cover Name | Juiced Pearl | Aggression Hybrid |
| Cover Type | Reactive Pearl | Reactive Hybrid |
| Box Finish | 500 / 1000 Abralon / Powerhouse Factory Finish Polish | 500 / 1000 Abralon / Powerhouse Factory Finish Polish |
| Color | Pink / Blue / White | Black / Gold |
| Core Name | 40 Watt | Gas Mask |
| Core Type | Symmetrical | Asymmetrical |
| RG | 2.52 | 2.50 |
| Total Diff. | 0.041 | 0.058 |
| Int. Diff. | 0.000 | 0.016 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |