Hypoallergenic and Nickelfree : Buy with confidence if you have sensitive and infected skin, we have passed SGS certification, implant grade G23 titanium Belly Button Ring Navel Piercing are NonToxic, and will never corrode and turn green. Fine Craft : Belly Button Ring Navel Piercing are beautifully designed with AAAAA+ zircon and a smooth, round surface that you don't need to worry about damaging your Skin. AAAAA+ polished, shiny and will not fade.This Belly Button Ring has a high strength to Density Ratio, is not easily deformed and scratched,exquisite for easy Allday Wear.Internally threaded barbell;Claw buckle designed for mounting zircon. Elegant Packaging : The design language of the dark style gift box can express your personality, you can give it as a good gift to your Best Friend or Lover. Multiple Choices : To suit your needs, we have designed a variety of color birthstones for belly button Rings. You can choose to wear according to your mood.Wearing a birthstone can bring good luck to you and your family and friends as a way to remember and wish them well on their birthdays. Easy Operation : You'll love the flexibility, they are easy to wear, we are using internal thread, Tiny and Snug, so you can put them in easy and they look great. Note: Avoid friction with the fabric when wearing the navel ring to prevent the upper fork from being caught by the cloth and causing skin damage. Gauge: 14G (1.6mm); Barbell Length: 10mm(0.394inch) /12mm(0.473inch); Opal/Zircon Size: 5/8mm