Czech 6/0 Seed Beads . Fabulous Czech Glass Seed Beads. Snow White Opaque. One Ounce Of Seed Beads Size 6/0. You've asked us to get single color seed beads and we have listened. Bright Snow White Opaque 4mm 6/0 seed beads, loose, just as in photo, with light glossy finish. Czech seed beads are some of the highest quality, most uniformly sized beads in use today. Quantity: - One ounce. Approximately 450 Snow White Opaque 6/0 beads. Approximate Measurements: Bead length 3mm, bead diameter 4mm. Hole size approximately 1mm. When strung, approximately 8. 3 beads per inch.