Dreambell 925 Sterling Silver Pink Ribbon Breast Cancer Awareness Glowing Glass Bead For European Charm Bracelets Fits Pandora, Troll, Chamilia, Biagi and other European style 3mm snake bracelets Slide on (non-threaded) Bead. Glass with 925 Sterling Silver (Stamped) single core. Special material in the glass make it glow in the dark. Pink ribbon pianted on the surface of the bead. The color of the ribbon may fade over time. Hole size is approximately 4.4mm