Roto Grip Hysteria Ball Specs:
- Color: Yellow / Purple All colors do vary somewhat from the picture shown.
- Reaction: Length with a strong backend
- Coverstock: 67MH Solid Reactive
- Core Type: Late Roll 69
- Factory Finish: 1500-grit Polished
- Radius of Gyration (RG): 2.58**
- Differential (Diff): 0.049**
- ** RG and Diff are based off of 15 lb. balls
- Hook Potential: Medium
- Length: Long
- Recommended Lane Condition: Medium-Heavy Oil