UPGRADED DESIGN, EASY TO ADJUST, MEET YOUR MULTIPLE TRAINING REQUIREMENTS : FitBeast grip strengthener adopts a knob to adjust the strength, which makes adjustment noiseless, convenient, and more fluent. It comes with different grip levels of 40LBS60LBS80LBS100LBS, which can match your various grip training and solve your problem of hand and forearm.ALUMINUM HANDLE, STEEL SPRING, MAKING HAND GRIPPER MORE SOLID AND DURABLE, HARD TO BREAK : The handle(10cm long) is made of aluminum, which is not easy to rust. Steel spring makes the gripper more firm and durable. The diamond design of the handle helps non-slip and wont hurt your hand. Besides, the anti-slip NBR gloves make your training more comfortable.EASY TO CARRY, EASY TO USE, WILL BE YOUR GOOD HELPER OF HANDS-TRAINING : FitBeast forearm strengthener is easy to use, convenient to carry (200g). It is perfect for musician, guitar, athlete, golfer, rock climber, tennis player, and office worker. Its a good choice to train your fingers, wrist, arms flexibility, and muscle strength.SUITABLE FOR ENHANCEMENT OF HAND STRENGTH AND HAND INJURY REHABILITATIONWhether you are an athlete or fitness enthusiast, who has strict demands for hand grip, FitBeast hand grips strengthener will be your good choice. If your hand suffers muscle fatigue or joint pain, FitBeast hand strengthener can effectively help you relieve hand muscle fatigue and repair hand injuries.