Dynamic training device for your arm and finger strength. Trains both arms, differently if you wool, and is simply suspended with a rope.
With the One Arm Trainer from Max Climbing, you can of course train both arms, but you can also train one arm more than the other. It is easy to hang on a rope and allows you to vary your training, depending on which grips you use. And if you travel a lot, you can simply take it with you.