trekking poles and hiking staffs are indispensable tools to casual walkers and serious hikers, backpackers, and mountaineers alike. Fully adjustable, shorten the poles on the fly using the simple twist lock to more easily make your uphill climbs. And for downhill? just add some length to aid your descent. While they require more use of the arms, utilizing poles or a staff more evenly redistributes weight throughout the body and allows for increased hiking endurance. What’s more, the shock-absorbing internal spring eases wear on weak or damaged ankles, knees and hips.