1. Material: silicone2. Net weight: grip ring: 50g; tensioner: 15g3. Size: grip ring: diameter 7cm, height 1.8cm; tensioner: 7.5x4x1.3cm4. The silicone gripper/tensioner is made of high-quality silicone, which is soft, does not crack, and has a long service life.5. At the beginning of the exercise, the silicone grip ring is placed in the palm of your hand, and the openness of your hand will follow the elasticity of the silicone grip to make a fist with a small amount of exercise. After persisting for two or three minutes, you will feel soreness and swelling from the palm to the fingers. At this time, the five fingers are spread out and stretched outwards, and the fingers to the fingertips are fully exercised6. Put the finger trainer on your fingers, stretch your fingers and do the stretching and closing movements forcefully. After two or three minutes, your fingers will feel sore and swelling. At this time, you have fully exercised from your finger to your fingertip.

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