This was a unique video tutorial that was very well made. I enjoyed seeing the carabiner in action, especially on a tough route like the Grand Cap. I currently live in an urban environment, and have been looking for some climbing wall panels that could introduce my kids to this wonderful sport. As I've gathered information on equipment, I have searched all over for light weight and safe carabiners, so I'm very happy to find this video(saw it on youtube, and it brought me to this site). As a novice climber, I have rudimentary gear myself. I feel that it is safe, but for my kids I don't want to cut any corners. Thanks again for the video. -Merideth