[18K Gold Plated Brass]: Square stud earring findings are made of 18k gold plated brass, smooth and elegant surface, gold sparkles, soft metallic luster, good ductility, no reaction to most acids, not easy to deform, suitable for long-term wear. [20Pcs Earrings In A Box]: 20Pcs stud earring findings, all packaged in a small box: 7.4x7.2x1.7cm, easy to not lose the pieces, can keep chains from dirty. [Size]: Square stud earring with loop: 12x10x1mm, hole: 1mm, pin: 0.8mm; Ear nuts: 6x4x3.5mm, hole: 1mm. [Wide Usages]: These gold plated earring findings are designed with hole loop, you can DIY these earring studs with loop hole by yourselves, change them into dangle charm earrings, tassel earrings, chain earrings, drop earrings or triple drop earrings. [Best Gift]: Using earring post with loop to make some delicate handicrafts as presents to your family members and friends on Mothers Day, Summer, Easter, St. Patrick's Day, Birthdays, etc.