[Reliable Material]:These bead cage pendants are made of iron,using electroplating process,they are shiny,stretchable,and sturdy [Design]:The bead cage pendant adopts the design of round hollow spring ball shape,which is lightweight and compact,meet your different daily design needs [Wide Applications]:These hollow cage pendants can hold crystals and beads and are suitable for making necklaces,bracelets,keychains,sweater chains,anklets,and other crafts [DIY Gift]:These necklace pendant charms make great gifts for r your family,friends,and colleagues,and enjoy the fun of diy [Package List]:The package includes a total of 12 pieces - four each of the 10mm 15mm sizes and two each of the 20mm 25mm sizes