Beaducation Flourish Metal Design Stamp, 12mm Curved Bracket Border Line Decorative Embellishment Punch Stamping Tool for Hand Stamped DIY Jewelry Crafts Original Metal Design Stamps Curved Bracket Border Metal Design Stamp Design measures: 12mm wide by 6mm high. Made from 1/2" square heat-treated tool steel. Beaducation Original Design. Made in the USA. Made to stamp on typical jewelry making soft metals, such as sterling, gold filled, copper, brass, pewter etc. Do not use on stainless steel.