Janecrafts 20pcs Vintage Square Shaped Pendant Trays with Flange Rim-- Silver-- Pendant Blanks Cameo Bezel Cabochon Settings 16mm 1. 100% Brand New. Shimmering silver, Glam antique bronze, charming antique silver for your choice. 2. Fits 16mm Square 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 Square 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.