Graba. Bargain! The Petzl Shunt is used below the rappel device. The Shunt works as a rappel back-up and replaces self-jamming knots like the Prusik. Works on single and double ropes. - Easy to install on the rope - Smooth clamping surfaces won't damage rope - May be used to ascend single or doubled rope **Technical specifications** - Weight: 188 g - CE / UIAA - Aluminum body - For use on single ropes 10 11mm or double ropes 8-11mm
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