SEXY SPARKLES 2 Sided Heart Aunt, Nana, Niece, Daughter, Sister, Brother, Special Friend Charm Quantity: One Charm Material: Zinc Metal Alloy, Silver Base Metal Size: Hole of the charms is 4.5mm slide on Core (not threaded) Fits: All major Brand Bracelets, such as Pandora, Troll, Chamilia, Carlo Biagi, Zable, and other add-a-bead bracelets.