Toho Round Japanese seed beads have a very consistent shape and size. and are available in a wide range of sizes including 15/0, 11/0, 8/0, 6/0 and 3/0. These large-hole round beads are designed to have a larger hole than other seed beads that allows for even more pass-throughs for thread. The larger hole also creates lighter beads which give you more beads by weight.