[18K Gold Plated Brass]: Earring hooks 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. [32Pcs Earrings In A Box]: 32Pcs earring hooks in 4 styles, each style 8pcs, all packaged in a small box: 6.8x5.2x1.1cm, easy to not lose the pieces, can keep charms for dirty. [4 Size]: Styles 1: 15x9x2mm, hole: 1mm, 20 Gauge, pin: 0.8mm; Styles 2: 20x4.5x1mm, hole: 1.2mm, 20 Gauge, pin: 0.8mm; Styles 3: 19x10x2mm, hole: 2mm, 18 Gauge, pin: 1mm; Styles 4: 15x10x2mm, hole: 1mm, 18 Gauge, pin: 1mm. [Wide Usage]: These gold plated earrings hook 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 hooks kit to make some delicate handicrafts as presents to your family members and friends on Mothers Day, Summer, White Day, New Year, Birthdays, etc.