Hole size is 1mm, Outer Diameter is 2.2mm 10 grams/bag (approximately 1,750 - 2,000) Miyuki Delica beads are known for their perfect tube shape and extreme uniformity. Their perfect tubular shape and large hole size to bead size ratio makes them ideal for consistent bead weaving texture and multiple passes of fine beading thread. The 11/0 size is the most popular bead size, recommended in bead magazines and beading books everywhere. There are approximately 175 to 200 beads in one gram of Myuki Delica Beads, depending on the color of the bead. There are approximately 17-22 Myuki Delica beads per linear inch. One square inch of flat woven beads would be approximately 285 beads, or approximately 1 1/2 grams.