forming an autoblock knot also called machard or french prusik with a 5mm accessory cord around a 9.8mm climbing rope.

5mm abseil abseiling access accessory alpinism also arborist arborists autobloc autoblock background backup called carabiner caving climbing closeup cord double eer eering emergency equipment fisherman forming french friction gear hand hitch ing isolated knot machard macro mountaineering nautical protection prusik rappel rappeling rappelling red rescue rope safety serge string third tresse white yellow