Seed Beads Czech 12/0 3 Cut Lined (a full one hank pack) over 100 colors available individually!, Aqua High quality Czech 12/0 3-cut glass seed beads. 12/0 3-cut Czech glass seed beads have larger holes thus making them easier to use in beadwork. The facets on 12/0 3-cut Czech seed beads are soft giving them a delicate, sparkling appearance. Use with nymo thread sizes A, B or D and size 12 English beading needles. Approximate pack specifications: 0.52 ounce: hank or hank equivalent of 10x15" strands, 3000 beads.