1. Hand trainer finger trainer: hand trainer can exercise the flexibility of each finger or the entire hand exercise to increase the strength of fingers, wrist and forearm, suitable for athletes, musicians, office workers, frequent use of computers and mobile phones. Rehabilitation training for people with hand fatigue or injuries. 2. Highquality material: the bracelet of this finger trainer is made of material that is skinfriendly, soft and comfortable to wear. The finger cap part is made of highly elastic silicone material, which has a good pulling effect and is not easy to break. The connecting part is made of highstrength alloy material, which is not easy to deform and is durable. 3. Ergonomic design: this finger trainer is available in 4 strengths: 20 lbs, 40 lbs, 60 lbs and 75 lbs. The finger trainer is designed to meet a wide range of exercise needs. The perfect design of the product maximises the activity area during training with the adjuster without having to take into account the circumference of the wrist. Hold a fitness device to improve the strength of the fingers, forearms and wrists. 4. and lightweight: the finger training device is small and portable, you can put it in your pocket or bag, train your hand when you fatigue your hand, so you can enjoy your training anytime and anywhere.