The K2 LockJaw Alu/Alu model boasts the largest adjustment range of K2's two-piece ski poles. This Lockjaw model utilizes lightweight, stiff 7075 alloy for a bomber backcountry pole. The patent-pending LockJaw adjustment system allows for quick adjustments while you are making your way through the back country. Use both poles together to measure the slope angle with the built in inclinometer, and a single pole to measure snow depth quickly and easily.