Ball closure Made From Nickel-free and Lead-free Hypoallergenic Surgical Stainless Steel. 316L Surgical Stainless Steel is Very Durable, Retains Color Far Longer Than Other Materials and is Extremely Easy to Clean High Polished Smooth Surface Lightweight Design Makes for the Perfect Combination of Comfort and Style, Perfect for Everyday Wear Barbell Gauge Size: 16G (1.2mm), Bar Length: 6mm (1/4"), Externally Threaded Ball Diameter: 5mm, Color: Aqua Multi-Purpose Piercing Jewelry; May Be Used for Cartilage, Helix and Tragus Earrings Satisfaction Guaranteed MoBody Offers 90-Day Money Back Guarantee