Seed Beads 11/0 Czech Opaque Gray (one hank pack) Our high quality Czech 11/0 glass seed beads are available in an incredible color range. 11/0 Czech seed beads are a great size for a wide range of beadwork techniques. The traditional colors are perfect for classic beadwork, the modern colors for contemporary projects Use with nymo thread sizes A, B and D and size 12 English beading needles for traditional beadwork. Approximate pack specifications: 1.25 ounces: Hank or hank equivalent of 12x20" strands, 4000 beads.