Miyuki Delica Beads (Size 10). These Japanese 10/0 seed beads are known for their high quality and consistent shape. These are a slightly larger size than the traditional size 11 Miyuki Delica beads. They come packaged in a 2.5 inch tube containing 8 grams. Each bead measures 2.3mm by 1.2mm with a 1mm hole. There are about 108 beads per gram.