Price: (as of – Details) * Starting design: Use the thumb of both hands to push the movement in the direction of the arrow of the inner ball, started by the internal spring, no rope, no power supply, simple and environmentally friendly.* Working principle: Through the rotation of the wrist to drive the ball core
Category: Grip Strengtheners
FLYFE Grip Strength Trainer, Plastic, 2 Pack / 5 Pack,
Price: (as of – Details) A ONE OF A KIND EXERCISER – EASY, SMALL, AND SIMPLE! Building muscle doesn’t have to be time-consuming, difficult, or complicated! Our new 2 pack of deluxe grip strengtheners for men and women make building muscle as simple as squeezing! Take our small, compact grip trainers anywhere, so you can