Silver plated base metal vertical brooch converters. Turn your favorite pins and brooches into pendants with these bails. Simply fasten pin onto the 13x4mm tube. Loop does not open. Silver plate is a thin surface layer of actual silver. Large loop on pendant bail fits up to 5mm chain or cord. The tube on this converter is fairly short (approximately 1/2", or 13mm long) to fit a wide variety of pin lengths. If you find that it slides around on a long pin, add French wire keepers to the pin (see alternate image) to keep the pin in one place.