Production Feature

l  Easily adjustable resistance range from 22 - 88 lbs (10 - 40 kg)

l  Made of high quality material, Easy to use and Fits conveniently in your pocket, purse or gym bag

l  Ergonomically designed to fit small to large hand sizes. Perfect for men, women, seniors and teens, Scale setting for accurate resistance.

l  Ideal for athletes and sports enthusiasts who want to increase their hand, wrist, for arm and finger strength for rock climbing, shooting, bodybuilding, golf, tennis etc

l  The easily adjustable dial and wide range of tensions make the hand exerciser a popular choice for those with arthritis, rheumatoid arthritis, tendonitis, carpal tunnel, tennis elbow and those recovering from a broken wrist and tendon surgery

l  Great hand strengthener for musicians including drummers as well as guitar, piano and violin players

l  Superior design and workmanship with molded foam handles and a strong durable spring that is built to last.

Use and care

The knob literally drives a screw.

The spring is attached to the screw and when you turn the knob the bottom attachment point of the spring travels further towards the knob, adding more resistance.

There's a roughshod guage that supposedly is used to measure the force, but it's just a bunch of tics.