Grigri (climbing)
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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. Grigri is a trademark of Petzl, but the success of this tool is so huge that it is likely to become a common name. Competitors include the Trango Cinch.
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