11. This is a quick link. It is an alternative to snap swivels. You can unscrew the hex part to open them, hook it over the shrouds (one time; no looping/pulling through), hook it through your screw eye or loop in the shock cord, and screw it tight. Since the shrouds slide freely through it, it adjusts the lengths automagically as it descends. They come in sizes down to 1/8" and cost about a dollar. For that matter, the two widgets I used in these pictures to synthesize a snap swivel are pretty much exactly the same except the arm with the screw-tight also hinges in to make it easy to snap onto something. These are frequently found with key rings.