Pilot Laundry-Tec pen for writing on fabric with a precise medium nib. Label your garments with this Pilot Laundry-Tec permanent marker. This black pen is easy to use and features a 1mm tip, in addition to water, light and washing machine resistant ink. The pen gives superior performance with permanent & waterproof results. Odourless and solvent free with dense, light resistant, black ink.Top Tip, iron over your ink to encourage permanent durability.