These are great hiking poles! We were replacing ones we've used for a couple of decades, and these are a great modern version. The clamps are wonderful. With the old ones we had to twist them to keep them in place, and the clamps make it far easier. We are hiking in the Swiss Alps for a month and using them most of the time. When I bought them I saw a review that complained that they slipped. But all you have to do is make sure the screw is tightened enough. My husband had no problem getting them tightened. We've been up and down very steep mountain trails, and these are fantastic.