The Backcountry Access Stealth 270 Probe features a quick-deploying mechanism to reduce fiddle time during beacon drills and rescue scenarios. BCA's Quick-Lock deployment lets you toss the probe in the air and simultaneously pull a notch to deploy the probe instantaneously, and the deployment tucks inside the first probe section to reduce space. Laser-etched depth markings assist with measuring snowpack depth and locating burial victims.