Pretty plastic (Lucite or Lucite-like) can be worn single, doubled , yes, even tripled for several very distinct looks. The beads are an elongated 3/4” oval with an unusual shape, kind of like two intersecting flat oval discs. Each is separated by a tiny faceted red bead. The strand is about 48” (!) long and closes with a brass safety clasp. The condition of this fun mid-century piece is excellent.