The Gripp is the granddaddy of all stress balls! The one pound Gravity Gripp Stress Ball maximizes strength in fingers, hands, wrists and forearms. Much more than a foam ball, the Gravity Gripp delivers a heavy handed workout with serious power.
The Gripp is the granddaddy of all stress balls! The one pound Gravity Gripp Stress Ball maximizes strength in fingers, hands, wrists and forearms. Much more than a foam ball, the Gravity Gripp delivers a heavy handed workou...
