Jeweled BioPlast Belly Rings - If you\'re looking for a more flexible, comfortable belly ring with a little bling, you\'ll love our jeweled BioPlast belly rings! Each BioPlast belly button ring comes with a gem-studded charm and top ball and an extra-long shaft that you can cut down to just the right length for you, making our BioPlast navel rings especially perfect for keeping a belly button piercing during a pregnancy.