These beads remind me of the titanium drinking cups my Grandparents had. The bead glows purple, green, and blue. Different beads have different dominant colors. These are vintage Czechoslovakian glass made in the 1980s or early '90s. The bead channel will accommodate up to a 0.5 mm cord. The color selection you receive will be random and no special requests can be entertained. Price is for 10 beads.