◐Materials◐ -14K yellow gold, 14K rose gold, 14K white gold -18K yellow gold, 18K rose gold, 18K white gold ✔︎choice one ◐Post Length(after closing)◐ -3mm, 4mm, 5mm, 6mm, 7mm, 8mm ✔︎choice one ✔︎The post length is 5mm. ✔︎If you require a post longer than 8mm, please contact us for price. ◐Gauge◐ 16G(1.2mm), 18G(1.0mm) ✔︎choice one ◐Measurement: approx. -15mm(W) x 2.4mm(L) -Backing type: Threaded screw back, 3.0mm in diameter -The Post thickness: 16 Gauge (1.2mm) ◐Materials◐ -14K solid gold/ 18K solid gold -Shiny Polished -Cubic Zirconia ✔︎If you require any other gemstone, diamond please contact us for price. ✔︎If you require CZ colors opposite to the listing images, please contact us. -Shiny Polished ※The listing for 1qty a cartilage earring. ✔︎If you require a clutch back post stud earring, please contact us for price. Feel free to contact us for more information if needed. 14K 18K Solid Gold Multi Color Rainbow Cz Long Curved Stick Ear Stud, Flat, Helix, Outer Conch, Lobe, Cartilage, Piercing Earring-16G, 18G