This is a cool, cast metal Cirlicue cord end and hook and eye clasp set in the Green Patina finish. This would be a great finish on a necklace or bracelet.
The tube accommodates up to 2.5 mm cord. I've shown it strung with 2 mm cord. You have to glue the cord in, you can't crimp it.
Cast metal beads, made in Greece. Castings start with a lead-free base metal, but are then coated with copper and finished (in the same way their Metalized Ceramics are finished) with fine metals (pure copper, fine silver and 24k gold).