Antique 925 Sterling Silver Clear Cz Crystal Good Luck Koi Carp Cyprinoid Fish Bead For European Charm Bracelets Fits Pandora, Troll, Chamilia, Biagi and other European style 3mm snake bracelets .925 Sterling Silver (stamped) with Antiqued finished and CZ Crystal Slide on (non-threaded) Bead Hole size is approximately 4.6mm