Heavy-duty, Stainless Steel Forearm Flexor helps build powerful wrists! Heavy duty steel spring with foam stabilizer pad targets wrist and forearm muscles needed to take control of your game. Adjustable stabilizer pad for regular or reverse wrist curls. Perfect size for travel or to carry in your bag to the gym. This device is made of high quality Stainless Steel, will not deform easily. A perfect tool to build powerful wrists!