A grip strengthener, also known as a hand gripper, is a handheld device designed to improve grip strength and forearm muscles. It consists of two handles connected by a spring or coil that provides resistance when squeezed. Using a grip strengthener involves holding the device with one hand and squeezing the handles together, then releasing and repeating the process. The amount of resistance can be adjusted by choosing a grip strengthener with a higher or lower tension level.

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