This hand trainer with a strong resistance of 40 kg is ideal for improving your grip strength during strength training. It is compact, lightweight and easy to use, so you can take it with you wherever you go. The hand trainer fits easily into any trouser pocket or bag. It is suitable for all levels and can be used in the gym. Thanks to its compact size and low weight of only 75 g, it is the perfect companion for on the go to work on your grip strength at any time. The hand trainer is made of high-quality thermoplastic elastomer.