John Bead Miyuki Delica Glass Beads are quality Japanese seed beads made of precisely cut glass, giving them uniform size, shape, and color. These popular beads are prized for their ability to allow finished patterns to lie evenly when creating a design. Considered by many to be the "Cadillac" of all beads, Miyuki Delica Beads have a larger hole (size 11/0) than other seed beads, so users can pass back and forth through them with a thread multiple times. Vials contain 5.2 g of beads.