Strengths muscles – this wrist exerciser is designed to improve strength, power and speed in the wrists, fingers and forearms, which is ideal for athletes, musicians, rock climbers, golfers and tennis players, adjustable design – perform regular and reverse wrist curls with the adjustable stabilizer pad, quality and comfort – this 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 lightweight – compact size, easy to take on the go, to the gym, office or use at home, portable and lightweight – compact size, easy to take on the go, to the gym, office or use at home, multi-use – this wrist and forearm developer provides forearm and wrist support for maximum safety and comfort.