Inspired by the Alien designs of H R Giger. It looks like a zipper -- until you tip it at a certain angle to see the eternity of hearts that make up this bangle bracelet! The interior rod is a tiny hidden heart too. Shown here in gold-plate glossy steel. Diameter approx 63mm. I have tested it in steel, so any of the metal options should work. If any other material is desired please let me know :) Manufactured in Europe/the USA by the Shapeways team.