BIC Intensity Metallic permanent markers write on light and dark surfaces; best for use on porous materials like paper and cardboard Electrify your life with this pack of 2 gold and silver markers for personalising everything you own The medium bullet nib makes it easy to write lines with an even thickness The textured rubber grip provides maximum comfort and controlled lines The alcohol-based ink in these permanent markers is low-odour and dries quickly; who knew ink could be so thoughtful