No nickel, lead and cadmium, it is harmless to your health. It is resistant to discoloration and will not discolor easily. Features: very shiny. The crystal design makes the ring shine. Its classic design can be worn alone or stacked with other rings. Simple and adjustable, easy to match, can be used for daily wear and any casual occasions. Adjustable design: easy to put on and take off, this simple ring fits fingers of all sizes, and it is also very suitable as a ring gift for women who dont know the ring size It can be chosen as the perfect gift for engagement ring, promise ring, wedding ring, bridal ring or Christmas, birthday, anniversary, marriage proposal, cocktail party, Valentine's Day, Mother's Day. Keep dry and avoid using chemicals Clean and wipe with a dry soft polishing cloth Remove when swimming, showering or other wading activities The cubic zirconia ring should avoid contact with water and high temperature to prevent its oxidation and fading. When the ring is not in use, put it in the storage box. Other considerations: 1. Manual measurement may have a difference of 2-3%. 2. The picture is from the actual product, the color and texture may be different due to different monitors Package includes: 1*butterfly ring Due to manual measurement, there may be a slight difference in size Because the display screen is different, there may be some differences between the color and the actual product, thank you