SURGICAL STEEL is the material of this curved barbells. The implant grade 316L Surgical Steel is Bio-Compatible, CORROSION RESISTANCE, EASY TO CLEAN. ANODIZED COATING not only inhibits infection but gives these curved barbell piercing jewelry a great durable resistant color that you can rely on. UNIFORM SIZING means these barbell curved can be worn in a variety of piercings; Auricle, Cartilage, Helix, Lip, Lobe, Medusa, Pinna, Rim, Snake Bites, Spider Bites, Monroe, Labret, Tragus and many more. SECURE FASTENING gives you confidence that these shiny ridgeless curved barbell earring will stay put for extended wear. YOU WILL GET Four pieces of 14g (1.6mm) Black Anodized Surgical Steel lip piercing jewelry, 4mm Black ball and cone ends. Two pieces of 14g (1.6mm) Black Anodized Surgical Steel cute belly button rings, 4mm Black anodized ball end. Two pieces of 14g (1.6mm) Black Anodized Surgical Steel bridge piercing, 4mm Black anodized cone ends. There are 3 lengths for your choice; 5/16 inch (8mm), 3/8 inch (10mm) and 1/2"(12mm). They are safely store in satin pouch or jewelry box.