Chalk Ink 6mm Commercial Wet Wipe Markers， 4-Pack<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Commercial 4 pack of Chalk Ink Wet Wipe 6mm chisel tip markers </span></li><li><span class="a-list-item"> Waterbased pigment ink; removes easily with ammonia based cleaner </span></li><li><span class="a-list-item"> Non-toxic; odor free; acid free; xylene free; lightfast </span></li><li><span class="a-list-item"> Works best on non-porous surfaces </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41F1adcxq9L.jpg" noproxy>