Skip opal titanium nostril stud images slider SKU: Opal Titanium Nostril Stud Sign-up to see price This 20g nose bone with an 2mm opal end is made from high-quality titanium and can be anodized to one of 13 colors.Product Details: Material: Titanium 6AI-4V-Eli ASTM F-136 Gauge: 20g (~.8mm) Wearable Length: ~7mm 2mm opal in prong setting