Its not much for strength…I have a 12lb rubber one that I use for bounce drills and such. It definately works your core and endurance. Its more of a crossfit drill if you will. But for muscle size it is not.
Its not much for strength…I have a 12lb rubber one that I use for bounce drills and such. It definately works your core and endurance. Its more of a crossfit drill if you will. But for muscle size it is not.