Clear glass cabochons magnify designs and patterns when placed on top of paper or fabric. Best used with earring, cuff link, ring and other flat-pad findings. Adhere paper or fabric to the flat side of the cabochon using Mod Podge® or clear-drying adhesives. Cabochons are non-calibrated and may vary plus or minus 1mm. Glass cabochons can contain minor flaws. Sizes and shapes vary.