These hoop earrings are savvy and spunky and love to be worn frequently. Polished for a luminescent shine, the earrings are made of durable 14k yellow gold that has been mixed with alloys (silver, copper, and zinc) to add strength and durability. The earrings are 2mm wide, with an inside diameter of 11mm. The posts are on a hinge and snap into a "U" shaped fixture on the back of the earring, forever relieving worries about lost earring backs and, in turn, lost earrings. Detail