Body Candy Stainless Steel White 2.3mm Synthetic Opal Nose Stud Screw 18 Gauge 1/4" Gauge size 18 gauge; 1 millimeters 1/4 inch; 6 millimeter stud length Made with durable 316L stainless steel Features 2.3 millimeter white synthetic opal accent Nostril screw is twisted into piercing for comfortable fit