Your Daily Exercise Needs- Perfect for your hand or fingers. Suitable for people of all age to increase hand strength, improves finger and hand dexterity, and reduces tired and stress. In addition, it can help balance and improve your grip muscles for your daily exercise needs,You can get repetitions in while driving, at the office or anywhereMaterial- Made of durable silicone material, it has the characteristics of good deformation resistance, high elasticity, not easy to tear or crack, and can be used for a long time,finger and forearms exercise, muscle strengthening, exercise training, fitness, etcFitness & Sport Enthusiasts - Strengthen Your Wrists, Improve The Dexterity Of Your Fingers, Increase The Strength Your Hands While Reducing Fatigue. Help Balance Your Grip Muscles And Your Expanding Muscles. 20/30 Lbs For Young Girls And Boys Use, 40/50 Lbs For Normal Life Hand Strength Exercise Use, 70/80 Lbs For Professional Hercules Or Athletes UseRehabilitation & Prevention - Great For Rheumatoid Arthritis, Carpal Tunnel, Tendinitis, Tennis Elbow And Are On The Way To Recover From A Fractured Or Broken Wrist, Or When You Type, Text Or Any Other Activities Which Use Your Gripping Muscles. It'S A Very Good Gift For Your Health No Matter You Are Outdoor Worker Or Office StaffFits All Hand Sizes & Portable Design - Suitable For All Age Groups And Fits Well For All Hand Sizes. Portable And Easy To Fit In Bag Or Pocket. You Can Start Grip Training Anytime And Anywhere