I had hoped that these very expensive poles which received an "Editor's Choice" award would be more durable. After less than 2 months of use, one of the poles has bent at the metal join in the lower section. I am a 60kg woman, was carrying a 5 kg daypack, doing a very gentle hike down a grass slope. I slid onto my backside and the pole caught in the grass. I discovered the lower section had bent at the join with the middle pole. This means that to fold and assemble the pole it has to be really forced apart/together and still has a visible bend. I am not sure if it is possible to straighten the metal as it is adherent to the blue plastic inner material. I am very disappointed and won't be purchasing Black Diamond poles again.