Miyuki 6/0 Seed Beads - Picasso Opaque Cobalt 6-4518. These Japanese glass Miyuki seed beads are known for their consistent round shape and quality that give you better precision in beading designs. These glass rocaille beads are durable enough for any beading project. They come packaged in tubes for easy storage and organization. Our large selection of colors, hues and finishes are ready for all of your creative designs. Miyuki 6/0 seed beads come in 14g tubes containing approximately 160 beads.