We highly recommend using BIC Mark-It Permanent Markers in a Fine Point tip. These markers are included with your purchase and almost anywhere office or school supplies are sold. If you decide to use a different type of marker, be sure to test it on an inconspicuous area first. *We are not responsible for any damaged caused by coloring outside of the Coloring Wallpaper panel. **Please note that markers might ship separately, and thus arrive on separate dates.