This popular belay device is designed for top-roping, gym-climbing and sport-climbing. The Grigri can improve safety in climbing the way a seat-belt does in a car because it jams when tension comes on the rope.
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 unjam the rope and you control the running of the rope, and thus the climber's descent, by varying your grip on the free end of the rope. One hand controls the rope to regulate speed and braking, while other hand holds brake-lever open.
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.
- Can be used as a belaying device for the leader or second on ropes 10 to 11 mm in diameter. Can be used for multi-pitch routes.
- Can be used as a self-braking descender or rappel device, but cannot be used with double-rope rappels. The Grigri doesn’t tire out the hands as the person rappelling need only pull a handle, which controls the rope's friction through the camming device.
- Popular self-belay device for solo aid climbing with unsupported modifications (use at your own risk).
- The Grigri is not ideal for ice climbing as the rope can freeze and become less pliable, creating undue friction and defeating the smooth action inherent in the Grigri’s use.
- Stamped diagram on side of Grigri illustrates proper setup for less chance of confusion
- Each unit individually tested for quality and safety