Compare the specs of the Hammer Extreme Envy and Hammer Radioactive Vibe 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 | Extreme Envy | Radioactive Vibe |
| Cover Name | Envy CFI Solid | HK22 – CT Reactive Max |
| Cover Type | Reactive Solid | Reactive Solid |
| Box Finish | 500 / 2000 SiaAir | 500 / 1000 / 1500 SiaAir / Factory Compound |
| Color | Black / Crimson / White | Neon Yellow |
| Core Name | Launcher LRG | Vibe |
| Core Type | Asymmetrical | Symmetrical |
| RG | 2.479 | 2.510 |
| Total Diff. | 0.054 | 0.042 |
| Int. Diff. | 0.022 | 0.000 |
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