Black Hand Gripper, 12 Pcs Packing, Hand Material: Eva Foam is easy-to-use hand gripper can develop muscle in the hands, wrist, forearm, and fingers to increase strength, as well as to exercise, heal and prevent hand injuries. Even, it’s great for anyone who is looking to improve hand strength. The compact-sized design has been crafted using an alloy steel construction grip so, you can easily put it in your pocket and take it anywhere for exercise to increase the strength of your forearms and fingers. It will be a long-lasting exercise tool for you as we have made this with top-grade, durable and comfortable handles, and high-quality steel sires.