20 Deannassupplyshop Rectangle Pendant Trays - Silver - 20X30 - Pendant Blanks Cameo Bezel Settings Photo Jewelry - Custom Jewelry Making Silver -- Inner tray dimensions: 1 Fits Deanna's Supply Shop 20X30mm rectangle glass perfectly -- also available on Amazon Trays are made from strong metal alloy -- Will not flex or bend. Lead, nickel, and cadmium-free. Exclusive Deanna's Supply Shop brand Loop: 4X6mm