About this item 6pcs Bioflex Flexible Plastic Long Belly Button Naval Piercing Jewelry. Bar Gauge 14G 1.6mm, Bar Length 10/12/14/16mm, Ball Dia 5*8mm. Bar Made of Bioflex Flexible Plastic, Highly Polished, Hypoallergenic, Smooth Surface, Comfortable for long time wear. The Gift for your GF, wife, mother and friends on anniversary, birthday, party. Goerhsjie offer 90days return or exchange.