Durable and Compact: Our magnificent hand grip exerciser is made up of solid, sturdy, and top-quality stainless steel and nylon material that makes it strong, compact, and durable enough to avoid any fear of damage or breakage, helping to provide you with an excellent grip trainer that you can use every day to strengthen your grip and exercising muscles for a longer period of time^ Ergonomic Design: With an ergonomic design that offers a stainless-steel spring, efficient spiral adjuster, and a convenient handle, this superb hand grip exerciser delivers uniform force and an abundant elasticity while being used, making this hand strengthener perfect for improving power, the flexibility of the forearm, wrists, fingers, hand, muscle building and much more^ Suitable for All Ages: This wrist exerciser has been equipped with a bold stainless-steel spring that allows you to adjust intensity levels between 44-110lbs (20-50kg) according to your need. It is highly suitable for men, women, athletes, musicians, rock climbers, tennis players, etc. This brilliant wrist trainer is also an effective tool for improving sports performance, injury rehabilitation, improving everyday performance, and relieving stress^ Easy to Carry: stylish and good-looking hand exerciser has a portable shape and lightweight design that allows this wrist strengthener to be carried easily in your pocket or bag for an efficient and comfortable hand workout anywhere. In short, these exceptional hand grips are a great choice for you to get rid of sub-health and start a healthy journey^ Satisfied Guarantee: After-sales-If you have any questions about our products, please contact us in time.