Gymstick Adjustable Hand Grip «Strong» The adjustable gymstick handle is ideal for strengthening your hands, wrists and forearm muscles. This tool is perfect if you have to pass a grip test for your employment, need a strong grip for your chosen sport or just yours Want to improve the handle thickness. The strong handle can easily be set to be set between 5 kg and 20 kg by simply turning the adjusting wheel. Scope of the scope:- adjustable handle