Beaducation Arrow Metal Design Stamp, 8.75mm Medium Classic Basic Style Punch Stamping Tool Hand Stamped DIY Jewelry Crafts Original Metal Design Stamps Medium Classic Arrow Metal Design Stamp- Beaducation Original Design measures: 8.75mm wide by 2.75mm high. Made from 3/8" 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.