Highly pigmented to create a mark on any CD/DVD Air-tight cap prevents the ink from drying up Superior formulation prevents smudging on the paper With its highly pigmented formula, you'll get a clear and long-lasting mark on any CD/DVD. Plus, the innovative air-tight cap ensures the ink won't dry up, so your marker will always be ready when you need it. And with our superior formulation, smudging on paper is a thing of the past. Get the quality results you deserve with Pilot Cd Marker Sca Efcd S4.