Self-braking belay device
Safe, for all your sport-climbing ropes, resistant, ergonomic, dynamic, light and easy to use! Sum is a new generation belay device/descender designed to belay the first and the second in sport-climbing routes or climbing-walls: You can give rope fast and easy without touching the lever. Its symmetry makes it as good for left-handers. Dynamic braking which gives good absorption for the first-ascender. It is very simple way to put in the rope. It comes with a “Belay Positioner” which assures that de carabineer always works in the correct position. Special uses: Rescue, Zip-lines, Ascender, Abseil.