Hand Grip Strengthener-Eoney Adjustable Hand Grip ExerciserHand Gripper with Resistance Range 22 to 88 Lbs(10-40kg) Resistance Range: 10-40 Kg / 22-88 Lbs Material: Stainless Steel & Polypropylene & High quality and durable hand grippers. Handle extension 1cm, fit all hand sizes Portable and Lightweight: Slim hand grip exerciser, small enough to fit in pockets or commute bag Durable and Sturdy: Constructed of top quality stainless steel tension spring A perfect choice for athletes, pianists, musicians, tennis players, golf players, rock climbers, computer workers who want to exercise or relax their hands. An ideal gift for your husband, son, Grandfather, male or female friends Quality Guarantee: We offer 1-Year Warranty Service and refund policy to ensure you could buy it without any concerns