18k Gold Filled Endless Hoop Earrings. This hoop is a continuous loop type of hoop that needs to pulled apart in order to open and placed on the ear. It has a special internal spring mechanism that keeps pressure on the post so it holds it close. 6 sizes available 20mm, 30mm, 40mm, 50mm, 60mm and 70mm. Hypoallergenic jewelry Wear Goldfi jewelry while bathing, on the beach or in the pool Enjoy the best 18k Gold Filled that is made to last Have available the best jewelry components and supplies to create your own collection. Make your jewelry in a unique, modern and stylish way. With an unrivaled variety, at GoldFi you buy straight from the factory to your atelier. With a large inventory, we have available a selection with a variety of styles ready to be delivered to you immediately. You can choose from earrings, necklaces, pendants and charms, bracelets, anklets, rings, chokers, pearls and many other quality jewelry made from fine 18k gold filled.