Hand grip strengthener - adjustable finger exerciser and finger stretcher - grip strength trainer for hand therapy, rock climbing - relieve pain for arthritis, carpal tunnel
Adjustable Finger Exerciser and Hand Strengthener: Change the positions of the hook to adjust the resistance value, 6 levels resistance( Heavy Black: 13 lbs, 17 lbs, 21 lbs and Light Grey: 6.6 lbs, 8.8 lbs, 11 lbs), Suitable from beginner to advanced.