This is a really good product, and I found them to be extremely useful. They are really good if you intend to go on a trip but would really like to keep/improve your strength while you are gone. Another advantage is that they do not require much space to set up. They can be set up almost anywhere there is a pole or a tree branch. Setup is fast and easy, allowing you to set them up and then get a work-out in as fast as 10 minutes or possibly even faster. The workout guide that comes with this product is also very good, with a large variety of exercises that incorporate many ideas one would not normally think of. This workout is designed to be 10 minutes, but could be modified to give a harder or easier workout. I would not recommend them as a permanent training tool though, because they only have a very limited set of holds. Also, I do not know that I would want to pay the 50$ they have listed here for them. My local gym sells them for only 30. Also If you really care they have a variety of colors. Enjoy.