1. [ 1PC Curved Barbell ] : Sold as a Single Piece, each item package includes Sun Stud top × 1, 6mm Curved Post × 1, 8mm Curved Post × 1, Finger Cot × 2, and Store Box × 1. 2. [Suitable Location] : Guage: 16G=2.2mm; Length: 5/16"=8mm & 1/4"=6mm. Threading: Internally threaded screw-on. suitable for Rook，Eyebrow. 3. [ Replace ] : If you bought the piercings in FINE4U JEWELRY, you can replace the top or post in the same gauge and the threading. e.g., 16g 8mm Screw on flatback stud can swap the 6/ 10mm length or the top. 4. [Feature] : ASTM F136 titanium and certified by SGS, suitable for fresh or healing piercings, Hypoallergenic, and 100% nickel-free. 5. [ Great Idea ] : FINE4U piercing Jewelry will be the new Ideas for your friends and families on Anniversaries, Birthdays, Christmas, Valentine's Day, and Advent Calendar.