UPDATED DESIGN, EASY TO USE, MEET YOUR VARIETY OF TRAINING NEEDS: The FitBeast hand trainer adopts a dial to adjust the strength, making adjustments silent, comfortable, and smooth. It comes with different grip levels of 40 lbs, 60 lbs, 80 lbs, and 100 lbs, which can meet your various grip training needs and solve your hand and forearm problems.ALUMINUM HANDLE, STEEL SPRING: Makes the hand muscle trainer stronger and more durable. Difficult to break: The handle (10 cm long) is made of aluminum, which is not easy to rust. The steel spring makes the gripper stronger and more durable. The diamond design of the handle ensures slip resistance and won't hurt your hand. In addition, the anti-slip NBR gloves make your workout more comfortable. EASY TO CARRY, EASY TO USE, WILL BE YOUR GOOD HELP FOR HAND TRAINING: FitBeast forearm trainer is easy to use and comfortable to carry (200g). It is perfect for musicians, guitarists, athletes, golfers, climbers, tennis players, and office workers. It is a good choice for training your finger, wrist, arm flexibility, and muscle strength. SUITABLE FOR IMPROVING HAND STRENGTH AND RECOVERING HAND INJURIES: Whether you are an athlete or fitness enthusiast with strict hand grip requirements, FitBeast hand grip trainer will be your good choice. If your hand suffers from muscle fatigue or joint pain, FitBeast hand grip trainer can effectively help you relieve hand muscle fatigue and resolve hand injuries.