Birthstone Spacer Bead Charm July Red Quantity: 1 Charm Size: Approx: 11mm, Hole size: 4.7mm Slide on core Not Threaded. Material: Zinc metal alloy +Rhinestone, Silver Plated Base Fits: All major Brand Bracelets, such as Pandora, Troll, Chamilia, Carlo Biagi, Zable, and other add-a-bead bracelets. July Birthday Charm Spacer Bead for Add on Charm Bracelets