These poles have me back out walking again. I was having trouble with my knee swelling up after my morning walks. A friend recommended I try Nordic Walking. I purchased a more expensive set first, but they turned out to be defective. One pole kept collapsing, so I returned them and ordered these. I love them.I find that I'm walking faster, farther, and without pain. The swelling has gone down, and my knee feels fantastic. Not only are they great for your joints, but you get a fantastic work out as well.