"Hand Grip Strengthener Set: Our hand grip trainer set is available in a variety of sizes to meet our different training needs, whether male or female, young or old. Let's pay attention to the health and strength of our hands.Well-designed: Our hand grip trainer has a non-slip handle for easy carrying and can be easily put into a bag or pocket. You can exercise your hands anytime, anywhere and save gym fees.High-quality materials: The handle of our hand grip trainer is made of durable knurled aluminum handle and high-quality springs, making it a durable exercise tool. The aluminum handle is sturdy, durable and safe, providing you with an excellent exercise experience.Injury Rehabilitation: Our hand grip trainer is perfect for improving the strength and flexibility of fingers, wrists and forearms, and is ideal for recovery from hand injuries, arthritis, tendonitis, fractures and tendon surgery, and can also relieve hand stiffness."