I am using cheap as chips '
The FitLife ' poles and I have hammered them to report so far, surprisingly, they're doing well through being used mostly for hard pavement pounding - yay nordic walking and recently out on the moors where they also served as a bog prodders. Early on I bent the lower section on one of them when I got it caught in something, to just bend it back. But they are going to be 'improved' now I have discovered what needs improving, mostly comfort items pertaining to the grips and 'wrist' straps, one traction item - softer compound tips as the ones supplied are in my opinion too hard to cause the tips to on occasion slide on hard pavement to lose a power stroke, but also one safety item - reflective tape for country lanes at night.
Got mine as I have a bit of an iffy hip, to find they do indeed help with that, to find when I get a bit of a rhythm going, it's like using an full body arc trainer.