The pattern of this series are named "kaleidoscope",designed with beads by designer. [size] Diameter of earrings about 13mm [Material] alloy. Japanese-made glass beads. Swarovski rhinestone [delivery way] Only by post.(Registered Air-Parcel) If you require faster shipping time, please send us a Pinkoi message. [how to keep it] clean the accessories, and put it in zipper bag.