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.. . 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 in any position. Ultra-light (35 g) and very compact: the ascender can be carried permanently on the harness or in a pack . Side marking on the ascender is visible when installed. Stainless steel cam with angled teeth and self-cleaning slot securely grips the rope, even in muddy or icy conditions. Material(s): stainless steel. Weight: 1.23 oz. (35 g). Rope compatibility: 8 to 11 mm. Carabiner compatibility: all Petzl models except SPIRIT. Certification(s): CE EN 567, UIAA. Imported.