They are washable jewelry for everyday wear.
Hypoallergenic Bioceramics Zirconia Ceramic Heart Stud Earrings, No Fading and Nickel Free, WhiteSmokeSize: about 5. Hypoallergenic Bioceramics Zirconia Ceramic Heart Stud Earrings They are nickel free and non-allergenic, perfect for sensitive ears.5mm wide, 5mm long..