Robert Baraban Thunder Ball 3" Increase Hand Wrist Grip Strength
$39.95
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Robert Baraban Thunder Ball. A new and unique way to work your fingers and test your grip strength 3 inch hollow steel ball Smooth surface, nothing to grip...really tests finger strength. Use a carabiner to attach the Thunder Ball to a pulley machine. Or use a carabiner and chain to attach the Thunder Ball to a weight plate. Tough Powder coated finish Carabiner and chain NOT included
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