MSR SureLock UL-3 Trekking Pole Sure Lock System: Positive-locking mechanism delivers the confidence of absolute no-slip performance Streamlined Construction: Manually operated Sure Lock push-button system for those seeking a minimalist design and light-and-fast performance Ultra light Strength: Light, strong and reliable 7000-series aerospace-grade aluminum Foam Comfort Grip: Ultra light, ergonomic design fits a broad range of hand sizes and ventilated strap provides breathability in summer weather Effortless Swing: Low-profile adjustment high on the pole minimizes swing weight