Review on Gonex Hand Grip Strengthener With Counter, Forearm Trainer Workout Kit (5Pack), Adjustable Resistance Grip Strength Trainer, Finger Exerciser/Stretcher, Grip Ring, Grip Ball For Recovery And Athletes by Ron Chang

the larger lever that claims to set up to 60kg (132lbs) cannot be accurate I noticed after I could easily squeeze it close over and over again at it's tightest setting so I did a very unscientific test and pressed it closed using my body scale and it measured 38lbs of force to close the tool all the way. given the leverage of being at the end of the grip I'd say that 132lbs rating is more like +-60lbs. the individual finger gripper does not have smooth operation if you don't press straight down they will bind up. The best thing in the whole kit is the ring you can silently work your hands with it and it has a good amount of feedback tension.