Wrist and Arm exerciser by Samson made of high quality alloy stainless-steel is a very effective way to improve the apparatus of your wrist. It increases the strength of your fingers, wrist and forearm and improves resistance. The exerciser does not deform easily and is very easy to grasp. Working on strength and resistance builds up muscle and tones up the arms which increases endurance. It is also suitable for improving the range of motion of your hands and reduces the chance of any injury.