BRAND: BM25 NEW IN PACKAGING. Material: 14 Karat Solid Gold Size: 14 GA (1.6mm), 3/8" (10mm) Top ball is approximately 4mm in diameter Length: 2 inch (50mm) Width: 0.5 inch (13mm) GDN1316-DWC Suitable for Navel Piercings It is always recommended to know your exact piercing size to ensure fitment, safety, and comfort. Please consult your local piercer if you are unaware of your size.