I purchased these earrings from Sabrina Silver because their products state they are nickel free.  I have a nickel allergy, and anyone who does knows how red and sore the affected area becomes in a very short time. I wore these earrings all day with no problems what so ever.  There is a 2mm, 3mm and a 4mm pair.  The 2mm are tiny, but wore together with the other two pair look nice with multiple piercings.  They look like the real deal, and I'm not telling anyone otherwise.  I am purchasing a second set for my daughter.  Thanks for a beautiful, nickel free product.