The Shunt from Petzl offers a mechanical replacement for self-jamming knots (Prussik, Machard, Auto-block, etc.). Positioned below a descender, the Shunt acts as a back-up belay for an abseil descent. It locks onto the rope as soon as you release it and follows your descent when you press on it.
Helpful for rappelling with a pack or haulbag.
For use on single rope (10 to 11 mm) or double (8 to 11 mm)
Standards :CE, UIAA
Read instruction manual and warnings carefully before using