50 Antique Bronze Tone Metal Stamping Blanks These Stamping Blanks Measures 16mm or Approximately 5/8 Inches Each Metal Stamping Blank Has a 2.4mm Hole 50 Antique Bronze Tone Round Circle 5/8 Inch Metal Stamping Blank and Crafting Tags 16mm Diameter Metal Blanks. Notice: Items sold through Craft Making Shop are intended for use and wear by adults. Notice: Items sold through Craft Making Shop are intended for use and wear by adults