Description
Training of hand, wrist, forearm, biceps, triceps and shoulder
Adjustable resistance
2.5 mm thick spring
The small muscles must also be strengthened Perfect for making hand and arm training a little more fun - and you can also adjust the resistance depending on what you are training
Adjustable resistance
2.5 mm thick spring
The small muscles must also be strengthened Perfect for making hand and arm training a little more fun - and you can also adjust the resistance depending on what you are training