10 CleverDelights Oval Pendant Trays - Dark Black Color - 30 x 40 mm - Pendant Blanks Cameo Bezel Cabochon Settings - 30x40mm Dark black color -- 30x40mm inner diameter - Bezel depth: 2.5mm Fits CleverDelights 30x40mm oval glass cabochons perfectly -- also available on Amazon Loop size: 4x6mm -- most CleverDelights necklace chains fit. Bail is cast with the tray, not soldered on -- very strong Trays are made from strong metal alloy -- Will not flex or bend Exclusive CleverDelights brand -- Ships from a USA warehouse