It is made of lightweight copper metal type. This not only makes the clip on earrings with smooth surface but also long-time color retention and comfortable to wear. Safe for sensitive ears. Our earring backs is good for you, small and portable size, very easy to carry wherever you go. Color: Silver. Material: Metal. Size: Approx. 1.6 x 1 x0.5 cm. You can use the components to make earrings, also can make the special earrings as a gift for your friends or your family. Easy to store and apply, and convenient to carry for going out. The earring backs are made of pliable and comfortable material to wear, safe for the sensitive skin. These earring converters are easy to wear, no need to pierce ears, just open the half ball shaped loop and clip it on your ears. Packing list: 16 x Earring Converter