These earrings are HEAVY. Not sure what the base material is, but I will be looking more closely at that before ordering more earrings. Also, the color is really not attractive. It is supposed to be yellow gold (like the picture) but instead it is an orangey color. They look cheap and unattractive. I really had high hopes for these earrings. Unfortunately, I waited too long to return and don't have the option now. Glad they were only $10.