These parts combine the best of both worlds: skin-friendly resin and metal catches that securely hold the pin. The material is resin, and the metal parts are copper with gold plating. The metal parts are completely embedded in the resin and do not touch the skin. Size: See photo Metal part color: Silver *This is a sale of earring backs only. Earring pins are only available in gold color and are sold separately. Silver color is currently not available. ・There may be uneven plating, discoloration, or small scratches. ・The color may appear slightly different depending on the monitor environment. Please understand.