Septum Gauge (Size): 16G (1.2mm); Inner Diameter: 5/16" (8mm),High polish smooth surface, comfortable to wear. Please check the septum clicker size carefully. Hypoallergenic Nose Rings Hoop/Hypoallergenic Septum Clicker: 316 Surgical Steel Smooth surface,comfortable to wear without sharp edge. Match with suitable apparel for different occasion. Smooth surface and easy to use.Perfect for Nose,Cartilage,Septum,Tragus,Helix,Rook,Lips,Belly Ring and Nipple Piercing. Very easy to open and close the septum clicker by hand.Not require a tool,Available Colors:Silver,Gold High-quality Jewellery:This Septum Clicker Ring Hight quality AAAAA+Cubic Zirconia on front side classic and stylish suitable for a variety of wears.it's the perfect gift for mom, wife, daughter, sister, riend and more.It's also a great idea for Birthday, Christmas, Valentine's Day etc. Perfect for women, men at any age, Perfect for daily using show your personality.