These are small, glossy glass beads in a dark blue color mixed with purple and green. I received them from someone who no longer needed them. Approximately 1 meter per strand, weighing 8g. 5 strands in total. Size is approximately 2mm or slightly larger. Manufacturer and color code are unknown. Although unused, there may be some minor scratches. The thread has deteriorated. It hasn't broken yet. Please consider purchasing if you understand the above information. Thank you for looking.