1. [ Mention ]: If the piercing top can't stay on the post, please refer to our picture about using the threadless stud. 2. [ 1PC Piercing Stud ]: Sold as a Single Piece, each item package includes Round stud top × 1, 6mm post × 1, 8mm post × 1, Finger Cot × 2, and Store Box × 1. 3. [ Suitable Location ]: Guage: 18G=1.0mm; Length: 5/16"=8mm & 1/4"=6mm. Threading: Threadless push pin. Suitable for Cartilage, Conch, Forward Helix, Helix, Flat, Lobe. 4. [ Feature ]: ASTM F136 Titanium and certified by SGS, threadless (Push Pin), hypoallergenic, and 100% nickel-free. 5. [ Great Idea ]: FINE4U piercing jewelry will be the new great idea for your friends and families on Anniversaries, Birthdays, Christmas, Valentine's Day, and Advent Calendar.