Bold, erasable, colourful marker pens.
The unique thermo-sensitive ink in these markers disappears when exposed to friction or heat >60 degrees C. Use the special tip built in to the cap, a normal pencil eraser, or, for larger areas, heat from irons, hairdryers, heatguns etc.
Need the ink to reappear again? Place your project somewhere cold e.g. a freezer.
Works great for marking out seams when the marked line will be hidden in the seam line.
This listing is for individual markers - choose your colour from the drop down list.
**Note: Due to the disappearing nature of the ink in these pens, they are not recommended for use on legal or official documents. Due to the temperature sensitivity, if you leave the pen somewhere hot e.g. hot car, the ink will be colourless when writing. To make the ink visible, place the project and the pen in the freezer (-10 degrees C).**