This hand gripper is suitable for everyone, like Athletes, sports, fitness coaches, fitness, musicians and people who want to exercise their hand, wrist and finger. It delivers effective force to your wrist, finger and forearm muscles. It will exercise all the muscles of the fingers, hands and forearms which will lead to better exercise and you can avoid injuries. Its design channels the resistance from its rust-resistant spring to your hand. It’s firm and not easily deformed, ensuring a longer use time, perfectly fitting the palm, and feeling soft and comfortable. You can use them anywhere and anytime, super easy to carry and use.