Silver plated over 100% lead free pewter. Price for one link/ connector. Outer Dimensions 20.8 x 14.6 x 2.3mm Inner Dimensions 12.8 x 12.8 x 1mm Hole Size 1.8mm Nunn Design Classic Mini Pendants are great bezels to use with Uv resin, 2 part Nunn Design Resin, epoxy clay, collage or transfer sheets. These timeless pieces are sure to inspire! Nunn Design Pewter Findings are cast in the United States of America using an imported pewter alloy NL7. This alloy’s constituents consist of 95.75% Tin, 2% Antimony, .25% Copper and 2.00% Bismuth. The higher percentage of tin has always been the hallmark to indicate the higher quality pewter alloys. There is 0% nickel content within the Nunn Design pewter castings. Nunn Design Findings are electroplated in the USA using imported precious metals; copper, 24k gold and .999 fine silver. The process of plating is very involved and requires many painstaking steps. These steps add to the quality that Nunn Design is known for.