- Durable, all-rubber construction with hollow air-filled core offers consistent weight and shape
- Channeled and textured surface provides increased grip and control during workout routines
See below sizing chart.
| ITEM | WEIGHT | DIAMETER | COLOR |
| RMB3 | 3 KG / 6.61 LB | 8.66" | Yellow |
| RMB5 | 5 KG / 11.02 LB | 9.4" | Orange |
| RMB6 | 6 KG / 13.22 LB | 9.4" | Black |
| RMB7 | 7 KG / 15.43 LB | 9.4" | Green |
| RMB9 | 9 KG / 19.13 LB | 9.4" | Red |