This tiny crystal flat back single stud features a front threaded screw-on closure. Worn on helix, forward helix, flat, tragus, conch and upper lobe piercings.| Lead and Nickel free. Sold as a pair 14K Gold PVD plated on medical grade Titanium White Zirconia Gemstone Crystal diameter 2mm(0.08in), 3mm(0.12in) Post Length 6mm, Thickness 1.2mm(16ga) Front threaded screw closure on 4mm flat back #E025FL-G6