FDA earrings, designed for metal allergy sufferers, are safe earrings used in hospitals for treating skin problems. These FDA earrings are made of super titanium, which is suitable for those with metal allergies, allowing them to wear them with peace of mind. Color: SWAROVSKI Elements, approximately 3mm diameter, round type (diamond cut, emerald/green) Earring backs are also included. The earring backs also appear to be allergy-friendly. These are used items, so I will disinfect them before shipping. If you are concerned, please disinfect them yourself. I also have a metal allergy, but I can wear them all day without any issues. Individual reactions may vary. Please understand this before purchasing. Free shipping via regular mail. Color: Green Scratches/Discoloration: None