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Purpose: To attach a movable rope to a fixed rope.
CP1: Two round turns with a perpendicular locking bar.
CP2: With a double figure eight stabilizing the knot no more than 6" away from the prusik.
CP3: The ropes between the prusik and double figure eight have equal tension.
![](https://i.ytimg.com/vi/nYYOCLVsuf4/maxresdefault.jpg)