Chalk Ink 6mm Bling-Bling Cha Ching Wet Wipe Markers, 8-Pack Bling-Bling Cha Ching 8 pack of Chalk Ink Wet Wipe 6mm chisel tip markers Waterbased pigment ink; removes easily with ammonia based cleaner Non-toxic; odor free; acid free; xylene free; lightfast Works best on non-porous surfaces