Finger Exerciser Trainer 20-45KG Hand Grip Strengthener Adjustable Power Training Balls Gripper Exerciser Hand Strength Exercise Features: FINGER EXERCISES: Finger Grip Strengthener allows you to individually exercise strength, flexibility and endurance-of each finger. Strengthen your entire arm to develop superior hand wrist and forearm strength. Simple and practical MATERIAL: Finger Grip Exerciser has superior quality with selected ABS, TPE and carbon steel spring materials. Finger Strength Trainers is stretchy, ergonomic, and comfortable grip Small and Portable: The finger strength exerciser is small enough to fit in your gym bag or pocket. You can enjoy exercising whether you are at work or leisure. Training your fingers anytime, anywhere WIDE APPLICATION: Hand grip strengthener has a wide range of uses, including rock climbers, tennis players, bass players, guitarists, pianists, athletes and musicians, people with tired hands Notice 1.Actual color may be slightly different from the image due to different and light effect 2.Please allow 1-3cm deviation due to manual measurement Material: ABS Package List: 1X Hand Grip Strengthener