This product is a set of 2 earring backs made of 14K yellow gold filled metal with a swirl design. The butterfly closure ensures a secure fit for stud earrings. These earring backs are ideal for offering stud support or as replacement posts. The 5.2mm length , Fit Post Size: Approx: 0.65mm-0.75mm.The wholesale availability makes them a convenient option for jewelry retailers and individuals looking to replace missing earring backs.