Toho Aiko Beads are top-quality precision cylinder beads manufactured with dedicated, state-of-the art machinery. They are completely consistent in size and shape making them a pleasure to work with in bead weaving. These cylinder glass beads are slightly more expensive, but the consistency and quality more than make up for the expense. Toho Aiko precision beads are slightly larger than 11/0 and are closer to 10.5/0 and because of this will not work interchangeably with Delicas. Like other Toho beads, Aikos have large holes allowing for multiple thread passes.