Black Diamond Quickdraw (300cm) Guide Probe: For snow professionals and deep snowpacks, the super-long Black Diamond Quickdraw Guide Probe 300cm features a super-strong yet light construction for workhorse performance day-in, day-out. Beefed up 12.5 mm aluminum tubes increase strength and stiffness, and Black Diamond's QuickDraw deployment system takes the probe from stored to search in a matter of seconds.