quantity - clear nose hoop, plastic earring hoops Size - clear septum retainer: 18 gauge (1.0mm), inner diameter: 1/4"(6mm), 5/16"(8mm), 3/8"(10mm), 1/2"(12mm). Material - Great quality clear bioflex septum ring, highly polished smooth surface, comfortable to wear. Great for sensitive skin! Using - Clear piercing rings retainers are good for work, surgery, MRIs. These pack can be used as clear septum retainer, plastic septum ring, daith retainer, helix cartilage earrings, clear nose ring. Using - clear earrings for work, plastic earrings for sports; MODRSA 18g Clear Septum Ring Nose Hoop Rings Daith Retainer for Work Surgery Bioflex Cartilage Tragus Helix Lobe Earrings Plastic Tongue Lip Piercing Clicker Horseshoe Barbell 6-12mm