[1 Year Warranty]Antishock Outer LockTrekking Poles OuTera Hiking Poles / Walking Stick Adjustable for Hiking and Skiing Hiking with this poles, wont make you disappointment, super good quality, wont be easy broken after chemo, walking was a chore and painful, but these sturdy poles helped me get around easier and with less pain. Light weight, stylish, portable,durable-Poles extend from 25 to 53 inches (approximately) Superfine wool cloth with soft nap of heat preservation tank, can be combined according to the climate change to spin off or wear mercurial, keep out the cold.