[Upgraded Soft material]Finger trainer is made of high-strength silicone, soft and not cracked, safe and odourless. Strong and . Whether you're a musician, athlete, or just looking to improve your finger strength, Gripster can help you achieve your goals. [Portable and ]The finger trainer is small and light Compact design allow you easy storage in the pocket or your handbag, easy to use for anyone and anywhere. [Adjustable Finger Strength Trainer] resistance levels of updated finger trainers enable the hands to get the maximum training. So it allows you to customize your hand exercise and increase your hand strength by the day. With regular training, you can improve your performance in different sports or everyday activities. [Super decompression] is an excellent tool to avoid injury by improving your wrist flexibility and dexterity. by stretching as long as possible, the silicone finger trainer has a calming and relaxing effect on muscles and emotions. until they get tired. When you let go, you feel relaxed. Colour:black+gray Material:Silica gel Package Contents: 2X Grip Strength Trainer 1X wristband Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.