Body Candy Solid 14k Yellow Gold 2mm White Synthetic Opal Left Nose Stud Screw 18 Gauge 1/4" Gauge size 18 gauge; 1 millimeter Length 1/4 inch; 6 millimeters Nose stud with white synthetic opal in a bezel setting Solid 14k yellow gold nose ring with polished finish Nose screw designed for use in left nostril