Features: 3 Resistant Levels to Choose from: Silicone Guitar Finger Exerciser provides you with 6 levels of resistant levels including 6.6LB 8.8LB 11LB 13LB 17LB and 21LB. Material: Our 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. Portable And Lightweight Design: Finger Trainer is small and light enough to fit in your gym bag or pocket. You can enjoy a workout at work or at leisure. Exercise your hands anytime anywhere with the Finger Extensor Exerciser. Wide Range of Users: the hand strengthener relieve wrist bands are suitable for people of different ages and applicable for rock climbers tennis players golf players baseball players guitars pianists drummers and more. After-service: If you have any questions after receiving the product please feel free to contact us and we will provide you with a satisfactory answer. Specification: Material: Silicone Weight: 40g Color: Black includes: 2 * Hand Grip Strengthener(black and grey) 1 *Wrist Strap or 1 *Hand Grip Strengthener(black) 1 *Wrist Strap "