SURGICAL STEEL is the material of this cartilage earrings. The implant grade 316L Surgical Steel is Bio-Compatible, CORROSION RESISTANCE, EASY TO CLEAN. INTERNAL THREADING makes these tragus earrings the easiest to screw on. UNIFORM SIZING means these helix piercing can be worn in a variety of piercings; cartilage, eyebrow and many more. CRYSTAL labret piercing twinkle and sparkle, adorning your piercing and capturing attention. They look stunning for a special occasion and make a great gift too. YOU WILL GET Three pieces of 16g (1.2mm) 1/4" (6mm) 316L Surgical Steel internally threaded labret studs, 3mm crystal ball end. One piece of 16g (1.2mm) 1/4" (6mm) 316L Surgical Steel internally threaded screw, 3mm Clear crystal ball end. One piece of 16g (1.2mm) 1/4" (6mm) 316L Surgical Steel internally threaded ends 3mm Aquamarine crystal ball end. One piece of 16g (1.2mm) 1/4" (6mm) 316L Surgical Steel internally threaded labret jewelry 3mm crystal ball end. There are 4 crystal colors for your choice; Peridot, Emerald, Amethyst and Sapphire. They are safely store in satin pouch or jewelry box.