WildKlass Jewelry BioFlex Pregnancy Navel Ring with Gemmed Teddy Bear Dangle Crafted especially for a pregnant tummy our BioFlex Barbells are comfortable and flexible, they can be customized and adjusted as needed so that you can wear it throughout your entire term. BioFlex is also fully autoclavable. Lightweight and comfortable to wear. Material : 316L Stainless Steel Thickness: 14g, Length: 51mm, Ball Size: 5mm, Dangle Size : 21mm x 19mm Exceptionally High Quality Jewelry!