Product Descriptionwrist exerciserSTRENGTHEN MUSCLESwrist exerciser is designed to improve strength, power and speed in the wrists, fingers and forearms, which is ideal for athletes, sportsmen, fitness enthusiasts, professionals, rock climbers, golfers and tennis players. We DO NOT recommend this gear whose tension is more than 8kg to beginners or kids or physical pherapy.Notice:For physical therapy, sports beginners, women and kids,we advise you to buy the 11.4 inches one in the below.wrist strengthenerADJUSTABLE DESIGNPerform regular and reverse wrist curls with the adjustable stabilizer pad, which is in the middle of the wrist strengthener.- FOR MORE RESISTANCEMove the stabilizer pad towards the handle for more resistance.- FOR LESS RESISTANCEMove the stabilizer pad towards the U shaped foam for less resistance.NOTE: If you feel uncomfortable to use this gear, please stop using it and dont use your force blindly.QUALITY AND COMFORTThis wrist strengthener is made with heavy duty carbon steel springs and thick 10mm foam stabilizer pad (in comparison to 6mm) for extra comfort and cushion.PORTABLE AND LIGHTWEIGHTCompact size, easy to take on the go, to the gym, office or use at home.MULTI-USEThis wrist and forearm developer provides forearm and wrist support for maximum safety and comfort.