Post History
We used GriGri extensively at my local wall for groups, route setting and emergency rescue in the wall. The key issue is that like a car seat belt a GriGri needs inertia to fire it - a sudden je...
Answer
We used GriGri extensively at my local wall for groups, route setting and emergency rescue in the wall. The key issue is that like a car seat belt a GriGri needs inertia to fire it - a sudden je...