Opalo necklace invisible fishing line hamsa hand star nylon cord. This piece is an ideal complement for outfits. Jewelry Care: Is a kind of handmade jewelry for you. Avoid any contact with abrasive substances, perfumes, creams, gym, pool and sea, etc. Store your jewelry separately from other accessories in a dry place. Now that you know how to take care of your jewelry and make it last longer, enjoy your jewelry.