Dritz Mark-B-Gone is used to transfer pattern markings, needlecraft and quilting designs. It features water soluble ink and marks can be removed with a damp cloth. For best results use on washable fabric. Not recommended for dry clean only fabrics. Store pen with cap on and point facing downward. Do not iron over marks or launder before completely removing with plain water. Some laundry products containing sodium hydroxide or sodium carbonate may set marks if they are not completely removed before laundering. Available in blue (BL) only. Pre-test on sample fabric before using.