❤Thoughtful Design❤: 1pc 9K solid gold externally threaded replacement ball ❤Common Size❤: 14Gauge (1.6mm); Ball size: 4mm. Please check the gauge of your belly body jewelry. ❤Nickel Free❤: the top replacement ball for the belly ring is made of 9K solid yellow gold,the most safe materials for all types of skin.Hypoallergenic and nickel-free. ❤Smooth Surface❤:High Polished, Lightweight and Comfortable to Wear ❤PERFECT AFTER-SALES SERVICE❤: Highly Specialized Body Jewelry. Production / Designing / Creating.If you have any questions please feel free to get in touch with us and we'll handle it immediately thus providing you with 100% pre/post satisfactory services. At OUFER we sincerely believe that the right piece of jewelry will not only deliver beauty but also confidence and purity. Therefore, we have a passion for exploring piercing jewelry with the purest of hearts for everyone, bringing them wellness and confidence while they’re pursuing whatever makes them Happy. Our mission is to make diversified and quality body jewelry more accessible and relatable for all. We get body piercing right in a dependable and simple way and keep bringing a safe, comfortable yet easy experience for our customers, leaving them with a feeling of safety and comfort and making it simple for everyone to express themselves. Oufer, where you can simply get the right piercing jewelry. Our vision is that Oufer believes the right jewelry delivers beauty, confidence, purity, and wellness.