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This Petzl invention has revolutionized belaying techniques both on climbing walls and on rock faces. To belay a climber, you slide the rope smoothly through the device. If the climber falls, the sudden pull makes the cam pivot, which presses on the rope and stops it running. For lowering a team-mate off a climb using a Grigri, you operate the handle so as to release the rope and you control the running of the rope by varying your grip on the free end of the rope. Although it gives greater safety, the Grigri is not a substitute for vigilance on the part of the belayer, who must remain attentive to the climber at all times. Features: - Self-braking descender/ belay device
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