Use to transfer pattern markings, needlecraft and quilting designs. Always test marking pen on the fabric you are using to be sure marks will completely disappear. Some fiber contents – fabric finishes or dyes (red and pink in particular) may not be suitable for use with this pen. For white pen – apply firm pressure when marking fabric. Marks will appear when ink dries completely. Do not store marked projects for an extended period of time. To remove marks – rub gently with clean cloth well moistened with plain water. If marks reappear when fabric dries – repeat removal process. NOTE – 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.