This is a variable length and ring AR printable form of a chainmaille weave coined Byzantine Chain.
More information on the weave itself can be found here:
http://www.mailleartisans.org/weaves/weavedisplay.php?key=13

Open in customizer to generate your stl file for printing.
Sometimes the customizer does not launch correctly. If this is the case, follow this link: http://www.thingiverse.com/apps/customizer