Color and Size: Silver; Bar Thickness: 16 gauge (1.2 mm); Internal Diameter: 3/8" (10 mm); sold individually Material: Made of 316L surgical steel; polished very well; comfortable to wear without sharp edge Easy to Open and Close: The clicker opens from the top clicks in place; make sure it's lined up before clicking together Multi-function: The hinged clicker hoop is suitable for septum ring, nose ring, cartilage earring, conch earring, helix earring,daith earring,tragus earring,,rook earring, ear lobe earring, lip ring, etc Beautiful hinged clickers make you unique; suitable for women and men