Cabochons Pandahall 20pcs 8mm Half Round Flat Back Clear Glass Dome for Photo Pendant Craft Jewelry Making Size: about 8mm in diameter, 3.5mm(Range: 3~4mm) thick Material: Glass; Color: Clear Usage: Cabochons Shape: Half Round; Priced per 50 pcs Best used with earring, cuff link, ring.Best used with earring, cuff link, ring.