Black Plastic Gyre Necklace Boa is constructed from post-consumer black plastic waste from take-out containers, serving bowls, roast chicken trays, bottle caps, pen caps, black plastic straws, deli containers, nail polish caps, yogurt lids, and anything made from black plastic. The ends of the necklace may look like a “jewelry catch” but they are actually black plastic spools from CDs. Monofilament. Plastic is cut by hand, drilled, and threaded. The Black Plastic Gyre Necklace Boa is 9" ht x 14" wide x 26' long.