I seen these things in movies in the past and thought they were a joke. The lead character unwinds his watch band and scales down a mountain with it :bluelaugh: Then I was flipping though the channels a couple days ago and they were actually talking about them and their million different life saving uses. I know you only get several feel of cordage on the watch bands, but alot more with the bracelets. What are your guys thoughts? Are these things worth their weight or are they more of a novelty item? If they are actually decent, I would assume that the ones with the d-ring style clasp are better than the plastic style clip clasps.