Pack of 3 Triple Forward Helix Black BioPlastic Labret Studs available in 18 gauge7mm or 16 gauge, 1/4 inch (6mm), 5/16 inch (8mm), or 3/8 (10mm). Silver color plated base metal tops are black round jewels, prong set, and push into labret bottom. Three tops included in diameter sizes: 3mm, 4mm, and 5mm This item is suitable for triple forward helix piercings, black tragus earrings, BioPlastic cartilage earrings, 18g or 16g earrings, Madonna piercings, Monroe piercings, nose rings, labret piercings, medusa piercings and other ear piercings.