TOHO Aiko Beads are precision-manufactured 1.8mm cylinder beads that have been crafted with a combination of high-tech equipment and traditional TOHO ingenuity to create a completely consistent shape and size. Said to be superior to any other seed bead on the market today, near-perfect Japanese Aiko Beads are available in almost 1,000 colors and are being used by designers to create delightfully smooth and silky designs.