10 pieces cabochon cameo base tray bezel blank diy jewelry findings simple perforation side-on inner size 30mm round glass cabochons, Slivery;crystal

brand: wysiwyg pendant approximately size: inner size 30mm round (all dimensions are measured manually with deviation) package includes: 10 pieces color: antique bronze as the picture shows(please notice that the p may have a little chromatic aberration with the real goods because of the light) material: zinc alloy