The two-section design of the MSR SureLock TR-2 Trekking Poles is ideal for trips where they spend the majority of the time in your hands, not on your pack. The patent-pending Trigger Release adjustment system offers a full range of rapid adjustability directly from the grip, making these ideal for ski touring, snowshoeing and on-trail use over variable terrain. The SureLock Adjustment System features a 100% positive-locking mechanism that offers the confidence of absolute, non-slip performance in all conditions.