– 3″ Diameter
– FREE USA Shipping
– Install Kit Sold Seperate
The Power Balls are the ultimate training tool for working grip strength while doing pull-ups.
The 3″ diameter provides an easier grip than its 4″ big brother, but make no mistake, these things will still work your forearms like nothing else.
From pinch strength to core exercises, the Power Balls provide more advanced rock climbing training options than your standard hanging tools.