Mechanical counting from 0 to 99, and start a new round. Do not have to count yourself. The integrated counter automatically tracks your repetitions as you squeeze. Never lose count of reps again! Help you focus on exercising. Suitable for all age groups and fits well for all hand sizes. Ideal hand gripper for rock climber, guitarists, drummer, wrestler or softball pitcher.hand grip exerciser strengthener is not only ideal for strengthening your hands, forearms, wrists and fingers but also great for injury rehabilitation, relieving stress. Great for arthritis, tendonitis, Physical Therapy patients, tennis elbow and are on the way to recover from a fractured or broken wrist, or any other activities which use your gripping muscles.duty plastic and reinforced metal alloy materials, unlike our competitors, which will break or even be made of low-quality materials. Durable and safe, it will not damage your hands and fingers, which will bring you an excellent user experience.No matter youre women or men, kids or adults, beginner or an experienced person, you can start grip training anytime and anywhere. Suitable for all age groups and fits well for all hand sizes. Hand gripper is ideal for improving strength, power and speed in the wrists, fingers and forearms. Ideal for athletes, musicians, rock climbers, golfers and tennis players.If you are looking for a cost-effective, reliable and powerful hand grip, this hand grip strengthener is a good choice.Enhance grip strength, stamina and coordinationGreat for beginners as well as more advanced exercisers to improve their grip strength.