The 'Moon' ear jackets are a 3 in 1 pair. The design consists of an oval stud with a lunar texture and a double oval ear jacket. Formed by hand with brass. Studs measure about .9 inch tall x .5 inch wide and the ear jackets are about 1.75 inches tall x .9 inch wide. You can wear these 3 ways, just the studs, the stud with the ear jacket by the front or by the back of the ear. Sterling silver posts and backings.