◐Materials◐-14K yellow gold, 14K rose gold, 14K white gold-18K yellow gold, 18K rose gold, 18K white gold✔︎choice one◐Gauge◐16G(1.2mm), 18G(1.0mm)✔︎choice one◐Post Length(after closing)◐-3mm, 4mm, 5mm, 6mm, 7mm, 8mm✔︎choice one✔︎The post length is 7mm. (listing image)✔︎If you require a post longer than 8mm, please contact us for price.◐Measurement: approx.-4.7mm(W) x 1.3mm(H) -Backing type: Threaded screw back, 3.5mm in diameter.-Post thickness: 18 Gauge (1.0mm)◐Materials◐-14K solid gold/ 18K so Minimalist Gold Piercing With Diamond Cut, Minimalist Gold Diamond Cut Piercing, Minimalist Gold Piercings With Diamond Cut, Dainty Diamond Gold Piercings, Gold Celestial Internally Threaded Piercings, Gold Celestial Piercings With Internally Threaded Details, Gold Celestial Piercings With Internally Threaded, Gold Diamond Cartilage Earrings As Gift, 14k Yellow Gold Piercings For Wedding