<p><b> -SP001 hand gripper help to get your strength back</b> <br /><br /> This is a little exercise equipment for every day strengthening They train your fingers wrist and forearm effectively and relieve stress. <br /><br /> PS: It also can be a nice little gift for Christmas stocking stuffers :) <br /><br /> <b>How to Use: </b> <br /><br /> You simply turn the knob to the exact setting you want and start. <br /><br /> Gripper’s gesture include single hand double hand gripping up/down the gesture varies up to your practicing purpose. <br /><br /> Last 5 seconds after grip tight 20 constant repetitions once would be more effective. <br /><br /> Insisting on daily use believe your hand should be more ambidextrous symmetrical and balanced. <br /><br /> <b>Specifications</b> <br /><br /> Material: stainless steel &amp rubber <br /> Resistance range: 22-88 lbs (10-40kg) <br /> Size: 6 x 3.4 x 0.8inch <br /> Weight: 5.3 ounces</p><ul> <li>GOOD WORKOUT HELPER for athletes musicians rock climbers golfers and tennis players etc. to improve strength and flexibility of the wrists fingers and forearms through daily exercising.</li> <li>REHABILITATION TRAINING HELPER for those who have lost strength due to arthritis carpal tunnel or those who suffer from tendinitis tennis elbow or may be on the mend from a fractured or broken wrist or tendon surgery and so on.</li> <li>ERGONOMICS DESIGN WITH A STYLE non-slip rubberized handle for comfortable holding average size to fit most of people including men women seniors teens.</li> <li>DURABLE CONSTRUCTION GOOD QUALITY strong stainless steel springs for more durability Tension adjustable from 22 to 88 pounds (10-40KG) for starter and advance use.</li> <li>COMPACT AND PORTABLE 5.3oz 6 x 3.4 x 0.8inch easy carrying and use.</li> </ul>