TRNR | Gel Balls rugby union Seat adjustment system for correct

Seat adjustment system for correct execution of each exercise

firm massage ball lets you roll freely to sustain pressure wherever needed and perform effective myofascial release

The ergonomic handle offers a comfortable grip

Using a high-density EVA shock-absorbing insole

TRNR | Gel Balls rugby union Seat adjustment system for correctAre you looking for a fun and convenient way to improve your grip strength? The TRNR Gel Balls will have you covered. In a pack of three with a light, a medium, and a heavy resistance, they allow you to progress at your own pace. They are perfect for crushing, pinching, and finger extension exercises, targeting the flexor and extensor muscles of the hand and forearm. You can also use them for reflex exercises or even as stress relief balls. The gel