Astrid Napkin Ring in Gold Set of 4 by Kim Seybert. The sea urchin as a decorating motif is one that transcends trends in home design. It's become a staple and we have added it to our napkin ring collection. The Astrid napkin ring has that modern midcentury feel, but can also work on nautical-themed tables, as well as on festive table settings, because of its metallic sheen. Materials: 95% Acrylic, 5% Metal