Can be used as a rope ascender or a progress capture device in a hauling system Automatic system presses the carabiner against the rope to start the braking action on the rope in any position Ultra-light (35 g) and very compact: the ascender can be carried permanently on the harness or in a pack Marking on the ascender is on side that is visible when installed Stainless steel cam with angled teeth and self-cleaning slot securely grips the rope, even in muddy or icy conditions For rope 8 - 11 mm The Petzl TIBLOC Ascender is an ultra-light and very compact ascender for rope ascents, hauling systems, or friction knot replacement in self-rescue situations. TIBLOC has an automatic system that presses the carabiner against the rope to start the braking action on the rope.