Create beautiful, customized Napkin Rings - two at a time - with the Round Napkin Ring design. Just prime the mold, fill it with any color and mesh frit you wish, and fire it. Don’t miss the Square Napkin Ring design. The Round Napkin Ring design is about 4.75 x 9 x 1 inches (12 x 23 x 2.5 cm). The fill weight for each ring is 75 grams. The finished pieces are 3.25 inches (84 mm) across.