Roto Grip UFO Alert
Bowling Ball Details
| Manufacturer | Roto Grip |
| Core | E.T. asymmetrical |
| Cover | eTrax Hybrid Reactive |
| Factory Finish | 1500-grit Polish |
| Color | Purple Solid Emerald Teal |
| Release Date | 7/2/2021 |
| Retired | Yes |
Core Specs
| LB | RG | Diff | Int Diff |
|---|---|---|---|
| 16 | 2.520 | 0.054 | 0.016 |
| 15 | 2.520 | 0.054 | 0.016 |
| 14 | 2.520 | 0.054 | 0.016 |
| 13 | 2.570 | 0.032 | 0.010 |
| 12 | 2.590 | 0.029 | 0.008 |