Compare the specs of the Roto Grip Attention Star and Roto Grip Magic Gem 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 | Roto Grip | Roto Grip |
| Ball Name | Attention Star | Magic Gem |
| Cover Name | eTrax PLUS Pearl | MicroTrax Hybrid Reactive |
| Cover Type | Reactive Pearl | Reactive Hybrid |
| Box Finish | Reacta Gloss | 2000 Abralon |
| Color | Berry / Silver / Iron | Citrine / Rhodonite / Jet |
| Core Name | Momentous AV + AI | Defiant LRG |
| Core Type | Asymmetrical | Asymmetrical |
| RG | 2.48 | 2.47 |
| Total Diff. | 0.049 | 0.053 |
| Int. Diff. | 0.017 | 0.016 |
Torque Length Back End Total Hook Ball Tester Ratings | Already a premium member? Click here to log in. | |