Grip Strength Trainer Set: TheMetal Hand Grip Strengthener comes in two different sets. Choose from 4 packs of 22.5-90KG or 6 packs of 45-157.5KG. The hand gripper is suitable for everyone, like Athletes, sports, fitness coaches, fitness, musicians and people who want to exercise their hand, wrist and fingers. Injury Rehabilitation &Hand Exercises for Strength: Hand Squeezer Grip Strength is perfect for improving the strength and flexibility of the forearms, wrists, fingers and hands as well as building muscle.It is a great rehabilitation exercise for people suffering from arthritis, tendonitis, carpal tunnel, hand injuries and recovering from tendon surgery. Durable&Quality Material:This hand grip is made of durable knurled aluminum handles and high quality springs for a long-lasting workout tool. The aluminum handles are strong and lightweight, durable and safe, it will not damage your hands and fingers, which will bring you an excellent exercise experience. FITS ALL HAND SIZES AND PORTABLE DESIGN: The grip is very portable and can easily be carried in your bag or pocket. You can take these hand grippers anywhere you want to exercise.Use them at home, in the office or while traveling to turn your downtime into productive workout time.Whether you are a woman or a man, a child or an adult, a beginner or an experienced person, you can start grip strength training anytime, anywhere. Suitable for all people and all hand sizes.