40 Sets Stud Earrings: Package includes 40 pcs earring studs, and 40 pcs glass cabochons, 40 pcs ear nuts, sufficient quantity can bring you much fun of DIY jewelry making Size Reference: The tray of stud earring setting is 8 mm(0.31 inch) in diameter, 10x1.5 mm(0.39x0.06 inch), pin: 0.8 mm. Cabochon: 8 mm(0.31 inch), 3 mm(0.12 inch) thick. Come with 1 pc plastic box to storage Flat Round Tray: These stud earring designed with a flat round tray on top that you can glue on other accessories such as pictures, cameo, rhinestones and other embellishments to create a beautiful earring craft 18K Gold Plated Stainless Steel Stud Earring: The cabochon setting post made of real 18k gold plated brass, looks smooth and shiny, not easy to rust or fade, won't bring burden, ensuring long-lasting use Widely Used: These blank stud earring bezel can be used to make meaningful gifts for your friends and family on Valentine's day, Halloween, Christmas, Thanksgiving, etc