Very helpful after my knee replacement.  Took a few tries to find the best placement to keep the spring between the shaft and the base from bending too much. Just to be clear this &#34;telescopes&#34; to any length but does not lock in place. If you push down on the handle while slipping your shoe on it will slide back to a shorter length. Still, appreciate the independence it gave me now that even slipping shoes on has  become a temporary challenge.