Evolis R3012, 2 Panel Monochrome Black TT + Varnish ribbons are black and overlay ribbons. The Evolis R3012, 2 Panel Monochrome Black TT + Varnish Ribbon ribbons are primarily used for printing text and one-color line art as well as apply an overlay on one or both sides of a card. The Evolis R3012, 2 Panel Monochrome Black TT + Varnish ribbon is specially designed to guarantee optimum operation of your Evolis printer without risk of damage. Evolis R3012, 2 Panel Monochrome Black TT + Varnish ribbon at Evergreen ID Systems, is good for producing up to 500 black mono prints with overlay per roll.