ImpressArt® raw copper Premium circle jewelry tag blanks. 18 gauge. 3/8" round measurement does not include loop. Attach jewelry tags (quality tags) to your jewelry to add your stamped signature, maker's mark or other ID. These small tags are great for single initials or designs, and can be used without stamping as decorative dangles. ImpressArt Premium Stamping Blanks™ feature smooth, rounded edges, a brighter finish, and thicker gauges. These thicker blanks allow for more metal to be displaced when stamping, resulting in deeper impressions. Premium Stamping Blanks™ look and feel substantial and will elevate your finished pieces. Some blanks may have light scratches and blemishes that can be polished.