Had "JustClick" lock broken today leaving me on the trail in the middle of the forest.
Had to use little swiss knife and piece of shoe lace to temporarily fix the pole and complete the trail. New poles, just purchased, less than 50 km of use.
As discovered the part holding lock is a THIN piece of black plastic not strong enough to withstand the pushing force normally applied to poles.
The little black piece you see on the picture is the problem.
This is not the manufacturing issue, clearly this is a design failure.
Customer Service contacted, waiting for their reply.