A grip strength trainer is specially designed to enhance your grip strength. It strengthens your forearm muscles and makes your fingers strong. However, the equipment indirectly increases your forearm size. Grip strength functions as the biomarker of your body. It is a measure of your muscle strength and optimum force or tension produced by a persons forearm muscles. Therapists use it as a screening tool for measuring the upper body strength and overall body strength. Unfortunately, grip strength gets reduced over time with age. To maintain good strength, we recommend using a grip strength trainer. It comes up with multi-level challenges. Therefore, you need to start with low challenge level, then gradually youve to increase the difficulties.