The Petzl GriGri self-braking belay device helps the belayer catch and hold a climber. If the rope suddenly comes under tension, as in a fall, the cam pivots to pinch the rope, helping the belayer stop the climber's fall.

Works well for working routes, lead climbing and top roping. Ergonomic design makes for smooth, controllable lowers. Also works great for rappelling on single ropes. Ideal for setting and cleaning routes as well.

Usage is similar to that of conventional belay devices: paying out rope is done using both hands, arresting a fall is done by holding the free end of the rope, for lowering and rappelling, the rate of descent is controlled by the hand holding the free end of the rope (the rope is released with the handle).

For use with single ropes between 10 and 11 mm in diameter.