The D4 Work/Rescue Descender features a unique and innovative cam action, which offers precise control at slow or fast speeds. The progressive cam works by way of one cam operating inside another cam.
Weight: 655 grams (23 ounces)
Strength: MBS 16kN (3597lbf)
For use with single ropes from 10.5 - 11.5mm (7/16")
