24 Deannassupplyshop 30mm circle Pendant Trays with glass dome - Black- 30mm - Pendant Blanks Cameo Bezel Settings Photo Jewelry - Custom Jewelry Making - 30mm Black color -- Inner tray dimensions: (30mm) -- Bezel depth: 2.5mm Deanna's Supply Shop 30mm circle glass included Trays are made from strong metal alloy -- Will not flex or bend. Lead, nickel, and cadmium-free. Exclusive Deanna's Supply Shop brand Great Quality; photo pendant jewelry