PARABALL DUMBBELL (Adjustable Parabolic Dumbbell) It is a great tool

It is a great tool to train slams

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It's patent pending design allows you to add weight asymmetrically to both sides of the handle

The 3 lbs weight extension's shorter diameter provides a longer leverage on the dumbbell

PARABALL DUMBBELL (Adjustable Parabolic Dumbbell) It is a great toolThe Paraball Dumbbell (adjustable dumbbell) is one of the most versatile tools for functional and strength training. It's patent pending design allows you to add weight asymmetrically to both sides of the handle, providing an additional axis of resistance to every exercise you can think of with a dumbbell. Besides the unmatched variability of exercises, both isometric and rotation wise, this is also one of the best tools for grip strength. It's unique