MSR TR-2 Trekking Pole Trigger Release One-Handed Adjustment: One-handed, on-the-fly pole-length adjustments provide the fastest, easiest response for matching terrain Sure Lock System: Positive-locking mechanism delivers the confidence of absolute no-slip performance Ultra light Strength: Light, strong and reliable 7,000-series aerospace-grade aluminum construction Ergonomic Grip: Works with a broad range of hand sizes and ergonomic, ventilated straps deliver breathability in warm climates Effortless Swing: Low-profile adjustment mechanism high on the pole reduces shaft weight for an effortless, all-day swing