【Grip training device with counting function】: The hand grip strengthener adds a mechanical counter to the bottom. Firmly press the button to automatically count. Record the number of times you train each time and reuse it. Increase the strength and flexibility of your wrists, hands and forearms. You can exercise your hands at the same time or start exercising with your family. 【Adjustable Resistance Hand Grip 】: The Strengthening Hand Exerciser can be adjusted from 10 to 60 kg, perfect for men and women of different strengths and for rock climbers, tennis players, athletes and musicians to improve the flexibility of fingers and hands wrists. 【Injury rehabilitation】: Daily exercise with this grip trainer helps recover from hand injuries, rheumatoid arthritis, arthritis, carpal tunnel, tenosynovitis, wrist fractures, broken bones and surgery tendons. Quickly strengthen the target muscle without injury, it's the perfect tool for post-operative rehabilitation 【Wide range of use】：Temporarily relieve your stress to increase forearm strength and hand strength. The hand grip is a forearm training device for fitness, movement, climbing, bouldering, tennis, boxing, rehabilitation, guitar, etc. Your grip will no longer hinder your progress in the gym. 【Ergonomic handle】： The ergonomically shaped handle of the trainer is particularly comfortable and safe in the hand. Thanks to the special surface structure, our hand muscle trainer guarantees ideal handling without slipping! hand muscle trainer is perfect grip training equipment for all age groups and fitness levels. Please note that due to manual measurements and display differences, there may be slight differences between individual products and photos.