Gun Metal Black French Lever Back Blank Earrings Base Settings,fit 20MM glass cabochons,buttons

12MM Round Flat Back clear Crystal glass Cabochon,Top quality,sold 200 pcs per pkg. Please allow 0.5- 2mm error due to manual measurement and make sure you do not mind before...

20MM Round Flat Back clear Crystal glass Cabochon,Top quality,sold 100 pcs per pkg the height/thick of the cabochon is 5.86mm

30MM Round Flat Back clear Crystal glass Cabochon,Top quality,sold 50 pcs per pkg