Rockin Beads 20 Stainless Steel Dye Stamping Engraving Blanks Tags Donuts Ring 20mm 6/8 Inch Stainless Steel With Hole 20mm approx 6/8 inch 20 donut ring Dye Stamping engraving not recomended for hand stamping Rockin Beads (TM) Brand comes with Rocin Beads Size Gauge Card