EXPO markers are designed for use on most non-porous surfaces, and are typically easy to erase. For best results, follow these steps: write with a firm, even pressure, use a dry cloth or eraser for removal, and store markers horizontally or with the tip facing down to prolong their lifespan. 
Writing and Drawing with EXPO Markers:
1. Apply Ink:
Use a steady, firm pressure when writing or drawing to ensure the ink flows smoothly. 
2. Ink Coverage:
If you are covering a large area, go a little slower to allow the ink to fully saturate the surface. 
3. Tip Care:
EXPO markers come in various tip s