Glass Cabochons Pandahall 20 Pcs 18x13MM Dome Oval Flat Back Transparent Clear, Fit Cameo Settings, 18x13mm, 4.5mm(Range: 4~5mm) Thick Size: about 18mm long, 13mm wide, 4.5mm(Range: 4~5mm) thick. Material: Glass; Color: Clear; Shape: Oval; Usage: Cabochons All new styles in unique glass. Tempered glass cabochons transparent surface. Use these cabochons with any flat components on a chain or a cord to be a decent necklace, bracelate All items from Pandahall ship via a tracking numbers,approx 7~15 days