Description: This fitness adjustable power grip offer easy adjustment to suit your desired exercise and to allow you to increase the amount of resistance as your strength develops. You may exercise your strength of hand, wrist and forearm, build up your muscle, relieve your fatigue and stress with it. Ergonomically sculpted handles with soft TPR rubber inserts ensure a comfortable grip during extended exercising.Features: - Used for strengthen forearms, hands, wrists and fingers, great training aids for people who need to practice his or her hands- Promote blood circulation, slow brain aging, relief rheumatism and arthritis of upper limbs- Lightweight and portable, easy to carry, convenient to use- Best choice for your fitness and exercise- Suitable for the elder, the office crowd and sports enthusiasts, etc.Parameter: - Material: TPR elastic plastic, polypropylene and fine steel- Strength range: 10 - 40kg Function: Comprehensive Fitness Exercise 0.181 Package weight: 0.21936 kg Product Size(L x W x H): 15.50 x 11.50 x 2.00 cm / 6.1 x 4.53 x 0.79 inches Package Size(L x W x H): 16.50 x 12.00 x 2.50 cm / 6.5 x 4.72 x 0.98 inches Package Contents: 1 x Hand Gripper