Beautiful new trays that can take an oval cabochon of 30x40mm – these trays have an openwork edge meaning that you can pop your jump rings any way you like so that they can hang vertically or horizontally, or you can turn them into connectors for bracelets and necklets or you can add any number of danglies. We love these! Internal bezel measures 30x40mm. External size: 48x55mm. Not quite 1mm deep. Waffle print pattern on the reverse. Made of lead and nickel-free zinc alloy.