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. They are slightly more expensive, but the consistency and quality more than make up for the expense. Aiko's 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.