When Assistance Fails!? The Physics And Experiments of Belay Devices
20:06
The Physics of GriGri | When does No-Hands Belay Fail?
30:36
Complete Guide into Belay Devices - Differences and Efficient Usage | Ep.6
16:21
Why NEOX is not a GriGri - Long Term Review
20:00
Falling physics that Every Climber Needs to know
14:54
What happens if you Don't Hold the Rope with GriGri?
20:07
Is your figure 8 knot going to kill you?
16:10
Petzl Reverso and Black Diamond ATC guide break tests - how strong is that eye?
26:56