Butterfly Garden Napkin Ring in Gold & Silver Set of 4 by Kim Seybert. The whimsical Butterfly Garden Napkin Ring features hand-etched brass and abalone shells. Delicate perforations on the wings of this butterfly napkin ring create a sense of movement. Iridescent, abalone shells add an element of color to these exquisite napkin rings. Materials: 90% Brass 10% Abalone