100 Brass Heart Metal Stamping Blanks with Hole 13mm X 13mm Heart Metal Blanks Brass Heart Metal Stamping Blanks 13 x 13 mm or 1/2 x 1/2 Inch Metal Blanks .33 mm Thickness is Perfect for Metal Stamping Practice Blanks Heart Shaped Stamping Blanks with 1.5mm Punched Hole Polishing and Finishing Required