1.Understand the power in your hands suitable for everyone. Whether climbers, tennis players, athletes, golfers or musicians improve the flexibility and strength of your fingers and wrists, ideal for everyone. 2.Adjustable hand grippers Adjust the resistance from 10 to 60 kg to your training level. Increase your grip strength gradually and ly. 3.Comfortable and durable – ergonomic and soft handle for a comfortable grip. Perfect for small and large hands, young and old. Can be used anywhere, anytime! 4.Comprehensive er We you a professional instruction poster and learning videos. 5.Improve grip and restore strength Increase your hand, forearm, wrist and finger strength with the adjustable hand trainer. It is a simple and effective tool for increasing gripping strength, stress relief and increasing endurance. 6.Adjustable resistance and portable for home gym adjust the resistance from 10 kg (22 lbs) to 60 kg (132 lbs) to your needs. You can train at home or in the office in just 510 minutes a day. Ideal for athletes, musicians, climbers, tennis players etc. 7.Highquality material for long durability Our gripping strength trainer is made of robust plastic and reinforced metal alloy, unlike others that break quickly or are made of inferior material. Safe for your hands and fingers, brings an excellent using experience.