Upgraded Finger Exerciser: Features a strong metal hook for enhanced hand strength. Build Your Grip Gradually: 6 adjustable resistance levels (6.6lb - 21lb) to customize your hand exercise. Portable Grip Trainer Set: Compact, lightweight, and easy to carry for workouts on the go. Durable and Long-lasting: Made of high-end silicone with a reinforced hook for extended use. Perfect Gift for Athletes and Musicians: Affordable and ideal for improving grip strength in athletes, pianists, drummers, guitar players, and climbers.