Artline Chalk Marker, Black Liquid Ink EPW-4 47460, Wet-Wipe Erasable, 2.0mm Bullet Tip. Liquid Chalk Markers. Artline Chalk Markers have the fun look of chalk when dried, without all the mess. Shachihata Artline EPW-4 chalk markers have fade resistant ink and are perfect for all blackboards, whiteboards, glass and plastic. 2.0mm acrylic fiber tip. Liquid ink with valve action... press tip down to re-ink. 2.0mm acrylic fiber tip. Xylene free.