Compare the specs of the Hammer Black Widow Gold and Hammer Black Widow Urethane 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 Gold | Black Widow Urethane |
| Cover Name | Semtex Pearl | Urethane |
| Cover Type | Reactive Pearl | Urethane Solid |
| Box Finish | 500 / 1000 Abralon / Powerhouse Factory Finish Polish | 360 / 500 / 500 Abralon |
| Color | Gold | Black |
| Core Name | Gas Mask | Gas Mask |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.50 | 2.50 |
| 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. | |