Clinically Fit Xtensor Reverse Hand Grip Strengthener Forearm Training Device Improves Finger Flexibility Helping Hand Stiffness Patented Hand Strengthener, Strengthens the muscles as you open your hand, helping to reverse issues stemming from a life time of gripping and squeezing Focus on Individual Finger Strength to address problems that traditional hand strength tools overlook Hand Grip Exerciser is meant to Correct Muscle Problems and Increase Blood Flow to the Affected Area; Restores Vital Nutrients to the Muscle and Tendons Helps People with Arthritis Reduce Hand Pain and Stiffness while also Improving Finger Function and Movement for better finger mobility No Assembly Required; Combining this hand grip strengthener with the Clinically Fit EZElbowPro system will Provide Long Term Relief from tennis elbow, or epicondylitis, and other issues such as rheumatoid arthritis