Description: High quality material: The handle is made of PP engineering material with good strength and durability, not easy to break. The spring is made of high quality spring steel which is durable and will not break ADJUSTABLE RESISTANCE: The adjustable hand exerciser is designed with a resistance range from 22 lbs to 132 lbs. Hand enhancers improve the flexibility of the fingers, hands, wrists and forearms, increasing or reducing the tension in the hands of the exerciser EXCELLENT DESIGN: The shape of the handle is inspired by the ergonomics of the handle and is comfortable to hold. Suitable for large and small hands, old and young. The handle resistance is adjustable, making it perfect for men and women of all strengths. Portability: The handle's lightweight design makes it easy to carry and store, and it also fits easily into your bag when you're out and about. Train your forearm, hand, wrist or fingers wherever you are. Applications: Suitable for athletes, climbers, tennis players, athletes and musicians, basic strengthening, rehabilitation training, muscle training. 1. Routine grip exercises can help you recover from hand injuries, rheumatoid arthritis, arthritis, carpal tunnel, tendinitis, fractures, wrist fractures, and tendon surgery. 2. This product is a good helper for sports enthusiasts such as handrails, tennis, table tennis, rock climbing etc. It is also a rehabilitation training aid for patients with injuries of the muscles of the hands or soft tissues. Material: PP Size: 16 * 11 * 2cm (6.3 * 4.3 * 0.8in) Quantity: 2 Color: black Characteristics: - Made of high-quality material , durable and sturdy, not easy to break and corrosion resistant. - Ergonomic and comfortable, suitable for large and small hands, elderly and young people. - The Adjustable and Comfortable Hand Enhancer develops the flexibility of the fingers, hand, wrist and forearm by increasing or decreasing the tension of the hand trainer. - Light and portable, easy to carry and store, easy to put in your bag when you go out. No matter where you are, you can train your forearms, hands, wrists or fingers. - Suitable for athletes, climbers, tennis players, athletes and musicians, basic strengthening, rehabilitation training, muscle training. Technical data: Black colour Material: PP Size: 16 x 11 x 2 cm 2 pcs. x hand-held training devices