Product Details16 Gauge 5/16 3/8 Aurora Gem Green Faux Opal Labret Monroe Set of 4 Simple colors can be simply stunning with this 16 gauge lip jewelry. Two are made with 10mm durable 316L surgical grade stainless steel straight posts and flat ends. The fronts each feature 4mm green faux opal ball ends for a look that turns basic to beautiful.The other two are made with 8mm durable 316L surgical grade stainless steel posts with flat disc ends . They feature aurora gem ends for a look that's colorful without being overwhelming. You can wear these in multiple piercings including lip, monroe, tragus, helix, and some conch piercings. too. Keep it basic but beautiful with these charming cartilage piercing rings. Sold as a set of four.Specifications16 Gauge (1.2mm), 3/8" (10mm), 5/16" (8mm), 316L Surgical Grade Stainless Steel Straight Posts, Faux Opal, Sold as a Set of 4