- bowwwl
- Bowling Ball Database
- Roto Grip
- Coverstocks
- Hyper X Pearl
Hyper X Pearl
Type
              Pearl Reactive
          Balls with the Roto Grip Hyper X Pearl Coverstock
| Ball | Release Date Sort ascending | Core | RG | Diff | MB Diff | US/Overseas Release | Discontinued | |
|---|---|---|---|---|---|---|---|---|
|   | X-Cell Master | Nucleus + A.I.Asymmetric | 2.500 | 0.056 | 0.019 | |||
|   | Gem Black Diamond | Defiant LRGAsymmetric | 2.470 | 0.053 | 0.016 | |||
|   | RST X-4 S | Roto Star Tour (RST)Asymmetric | 2.530 | 0.053 | 0.016 |