Microcender Rope Grab.

Very compact and lightweight. Slides easily up the rope and jams when the cam is loaded. Slides easily downwards if the cam is prevented from engaging. If overloaded or subjected to an impact force, the rope may slip through the device. Locking pin resists accidental disconnection of the device from the rope. For use on single rope from 7/16" to 1/2" (9 to 13 mm) in diameter. Also available in colour black (#B54 N).