20 Deannassupplyshop antique key charm - Antique Bronze Color - 20mm - Pendant Blanks Cameo Bezel Settings Photo Jewelry - Custom Jewelry Making - 20mm Antique Bronze color -- Inner tray dimensions: 20mm-- Bezel depth: 2.5mm Fits Deanna's Supply Shop 20mm circle 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 Length 28.60mmx72.30mm