Karabiner Safety Examined – they’re pretty safe. TrekCo May 22, 2010 Outdoor Education Karabiners have been examined independently in this article: http://www.sciencedaily.com/releases/2009/01/090119105447.htm It’ll take a bit of reading, but if you’re a climbing nut it is very interesting. If not, then maybe it’s a little like eating dry crackers..