This hugs and kisses belly button ring is made from 10k gold with a hollow structure and cubic zirconia. The hollow structure allows the top drop belly ring to be lightweight and comfortable to wear, as well as be larger for a more compelling price. Our cubic zirconia is bright and clear with an unmatched sparkle, so it will easily convince others it's the real thing.The dangle charm measures 21mm long and 4mm wide. The barbell is 1.6mm thick (14g). About GoldPure gold (24 karat) is a very soft metal. In order to make it into durable jewelry you can wear everyday, it is mixed with other metals to add strength. The most popular alloy of gold is 14K gold, which is 58.5% pure gold and 41.5% other metals like silver and copper. Adding other metals to gold also allows us to make beautiful gold variations like white and rose gold.Gold Jewelry CareTo clean your gold jewelry, soak it in a bowl of mild liquid detergent and lukewarm water. Then rinse with water and dry with a soft cloth. Be careful not to bend any prongs while cleaning, as this could loosen stones from their settings. We recommend storing your gold jewelry individually wrapped in soft cloth to protect it from being scratched.