Petzl GriGri Explained: Understanding This Fundamental Belay Device | GearJunkie
Tech Tip – Rappelling with a GriGri (or Cinch or what have you) | Splitter Choss
Petzl GRIGRI + Belay Device D13A
How to Belay From Above with a Grigri - YouTube
How To Belay with a GriGri - Learn To Rock Climb - VDiff
Petzl Grigri Belay Device – Gravity Coalition
Belaying a second directly off a fixed anchor at the belay station - Petzl Netherlands
Accidents in North American Climbing - Weekend Reminder: Use a Grigri correctly when lead belaying. http://bit.ly/1FSpINL This 30-foot ground fall accident resulted from a belaying error in which the inexperienced belayer incorrectly