High-quality MaterialOur finger grip strengthener is made of high-quality silicone material, which is also a forearm strengthener, more elastic, durable and comfortable to use, not easy to tear, and can be used for a long time. 6 Different Resistance LevelsThis finger exerciser provides you with 6 levels of resistance levels, including 6.6LB, 8.8LB, 11LB, 13LB, 17LB and 21LB. You can choose different levels according to the planning of training intensity. Portable DesignThe finger trainer is small and light, and can be put into your gym bag or pocket. You can enjoy exercise while working or playing. Use the finger extensor exerciser to exercise your hands anytime, anywhere. Relieve FatigueThe hand trainer can improve the strength and flexibility of the wrist, fingers and forearms. The grip trainer is also suitable for people who often use computers and mobile phones, relieve hand fatigue and discomfort, and prevent joint and muscle pain. Applicable to a wide range of peopleThe finger strengthener can improve the finger strength of athletes (rock climbing, fitness, tennis, baseball, boxing) and musicians (guitar, bass, pianists and violinists) and daily chores (driving, typing, writing, working, etc.)