11/0 Transparent/Iridescent Beads

11/0 is the standard-sized seed bead. They are larger than 15/0 beads, and smaller than 8/0 beads.

11/0 STANDARD is 2.1mm

11/0 DELICA is 1.6mm.

Both are marketed as 11/0 beads.

15/0 is 1.5mm 
11/0 is 2.1mm 
8/0 is 3.0mm

11/0 Delica beads are sold in a 7-gram tube unless otherwise noted.