These brass metal pendants have 1mm thick wires creating the look of a bird cage and come with a hinged bottom. The cage itself measures 12mm on the outside so you can place a 10mm or smaller bead (or any item that fits) within it. Close it and the loops at the top line up making it ready to attach to your necklace, earrings or any other designs you can dream up! Ready to use in their natural raw brass material. They are also ready for plating, if you prefer a more finished effect.