An innovative escape device system by Sterling Rope. This device and system gives firefighters an advanced, yet simple tool for hands-free, emergency egress. The F4 is an auto-locking descent control device. It is engineered to allow easy horizontal movement. The system offers multiple configurations all of which include the F4, an anchor, rope, carabiner and storage bag. The rope is easily pre-rigged by threading the rope through the holes for fast deployment. A great escape device and system!