Function:1. Perfect for sports loversThe finger strengthener can improve the finger strength of athletes (rock climbing, fitness, tennis, baseball, boxing) and musicians (guitar, bass, pianist and violinist) and daily household work (driving, typing, writing, working, etc.).2. 6 resistance levels to choose fromSilicone guitar finger exercises provide you with 6 levels of resistance levels, including 6.6 LB, 8.8 LB, 11 LB, 13 LB, 17 LB and 21 LB. You can choose the appropriate level depending on your grip strength.3. High Quality MaterialOur Finger Stretcher is made of high quality silicone material, which is safe and durable, not easy to tear and can be used for a long time. 4.Portable and Lightweight DesignFinger Trainer is small and light enough to fit in your gym bag or pocket. You can enjoy a workout at work or in your spare time. Exercise your hands anytime, anywhere with the Finger Extensor Exerciser.5.6 resistance levels to choose fromSilicone Guitar Finger Exerciser gives you 6 levels of resistance levels, including 6.6 LB, 8.8 LB, 11 LB , 13 LB, 17 LB and 21 LB. You can choose the appropriate level according to your grip strength. Description: Finger exercisers can improve finger strength and mobility. Made of high-quality silicone as the main material, it is not easy to tear, break or deform, and is small enough to fit in your gym bag or pocket.Specification: Product Name: Finger Exerciser Material: silicone Resistance level: 6.6 LB, 8.8 LB, 11 LB, 13 LB, 17 LB, 21 LB Black Color Note: Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.