The DecoColor Fine Line Black Opaque paint marker is a weather resistant liquid marker which we recommend for our copper nameplates. It will fade over time, so be sure to write on both sides of the nameplate to ensure the retention of your plant identification. To use: Shake well with the cap on the marker. Then press down on the marker tip (point) until the color appears. Caution: product contains xylene. Keep out of reach of children.