[Sterling Silver]: Pearl cup earring posts are made of sterling silver, premium material looks smooth and shiny, is not easy to fade and can protects the ears very well. [Stud Earring Findings]: Stud earring findings with good material and simple design gives it a more premium feel. Attaching your favourite half drilled beads, you can show off your noble and understated temperament with a simple outfit. [20Pcs Stud and 20Pcs Nuts In A Box]: Comes with 20pcs pearl cup earring posts: about 12.5x3mm, pin: 0.3mm; Ear nuts: about 6x4.5x3.5mm, hole: 1mm, all storage in a plastic bead containers: about 68x52x11mm. [Easy to Use]: Studs have 0.3mm pins at both ends, the long end for piercing the ear and the short end for inserting the half drilled beads like rhinestone beads, gemstone beads, pearl beads to create unique diy earring studs. [Best Gift]: Using pearl cup earring posts to make some delicate handicrafts as presents to your family members and friends on Valentine's day Halloween Christmas New Year or birthdays.