Why is this grip trainer so essential?

A strong grip isn't just essential for strong lifts, but everyday activities too. The same muscles engaged in dead lifts and bench presses also hold golf clubs, open jars, operate computer mice, and help friends move heavy furniture. Developed grip muscles aren't just strong but reduce fatigue and improve autonomy. Hold heavier weight more confidently and more securely, and make better use of the best tools you have: your hands.