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. Automatic system presses the carabiner against the rope to start the braking action on the rope in any position. Stainless steel cam with angled teeth and self-cleaning slot securely grips the rope, even in muddy or icy conditions.