Colouring Markers
Dye-based colour is transparent, which is exactly right on white paper and useless on black card, kraft or timber where the colour simply disappears. If the work is on a dark surface you need an opaque pigment marker instead. Within the classroom range, tip size and washability decide the rest, and conical tips are more forgiving than chisel for younger hands. See Posca paint markers, craft markers and crayons.
