Anodized Aluminum Business Card Blanks. Standard business card size 2.13" X 3.38" x .0165". Used as business card, prayer card, etc. Add ruler or scales to edges and use as pocket measuring device. Rounded corners with impeccable anodized coating on both sides for engraving. NO sharp edges or burrs. This business card never gets tossed away. Available in classic colors: Black, Blue, Red, Green. Need custom color? Contact us.