belay device designed to be easy to use and safe for beginners because it isself-locking under load. Invented and manufactured by Petzl.[ edit
a popular belay device used by climbers
The first belay device with an auto-locking mechanism to catch a climber's fall.
Trade name for a belaying device with an "automatic" braking system.
A Grigri (or Gri-gri, Gris-gris) is a hand-sized belay device designed to help secure rock-climbing or rope-acrobatic activities. Its main characteristic is self-locking behaviour under a shock load. Belayers using a Gri-Gri need full-attention on their climber and skillful operation to ensure safety.