5-12mm. I had a grammar school teacher that wore lipstick this color red. 18" of beads here. Temporarily strung in a graduated fashion from 5-12mm with small silver plated glass bead spacers between each. These are uncirculated vintage glass beads that have some naturally vintage color and shape variations that give them even more appeal. Restring them & add a clasp or take them apart to use the beads for your designs.