Janecrafts 20pcs Vintage Round Shaped Pendant Metal Trays with Flange Rim-- Antique Bronze -- Pendant Blanks Alloy Cameo Bezel Cabochon Settings 16mm 1. 100% Brand New. Shimmering silver, Glam antique gold, charming antique silver for your choice. 2. Fits 16mm cabochons 3. Inner size: 16mm , Loop size : 3mm * 3mm---Most necklaces fit. Bail was made into unit, not soldered on -- very strong. 4. Fits perfectly with 16mm round glass cabochons 5. Perfect for zipper pulls, key chains, rosaries, hanging art, using baby pictures, super hero logos, quotes... with some creativity and thought, these can do anything.