Czech glass seed beads are some of the highest quality and most uniformly sized beads in use today. Great for bead weaving techniques that require multiple passes of thread through each bead. Color: Opaque Snow White Measurements: Size 6/0, which can range from 3.8-4.2mm in diameter with 3mm bead length. 8.3 beads per inch. The holes are about 1mm in diameter. Quantity: 1 ounce (approximately 440 beads).