Leki khumbu speed lock antishock trekking pole pair description it offers the whole range of features comfortable aergon cortec grips speed lock adjustment system for hassle free pole length adjustment lightweight high strength aluminium shafts and the antishock feature is gentle on your joints an absolute all rounder built to endure the toughest challenges features aergon edgeless and ultralight aergon cortec grip for a comfortable fit in every hand lock security strap