Grip trainer

Device primarily used for testing and increasing the strength of the hands. Often referred to as crushing grip, it involves the use of the four fingers, rather than the thumb. These handheld devices, made of a combination of metal and rubber, come in various shapes and sizes but serve one ultimate purpose—to improve grip strength. The user applies force using their hand's muscles in different ways such as squeezing, pinching, or extending. Beneficial for anyone looking to improve their hand strength, whether for sports, rehabilitation, or general fitness.