All of our items are Brand New!! Metal: 18g Surgical Stainless Steel Gemstone Type: 2-4mm Genuine Turquoise Special Finish: High Polish Size / Style: 18g 5mm, 6mm, 8mm Lengths Product ID: N612 This is a listing is for genuine turquoise threadless lip or earrings. You can select the stone size and the length you would like. since they are natural stones your stones may or may not have the black lines.