Use ImpressArt's Stamp Enamel Marker to darken and enhance your stamped impressions. Simply run the tip of your marker over the stamped impression and wait for 1-3 minutes for the ink to set. Then wipe away the excess ink with a soft cloth and a clear design will emerge. The convenient applicator marker makes highlighting impressions quicker, easier and cleaner.Details:Black1.1 oz.Water-based, nontoxic acrylic inkSmall applicator tip for precise applicationWater resistant when dryWashes off with soap