Artline Glassboard Marker EPG-4 47527, Light Blue Liquid Ink, 2.0mm Bullet Tip. Artline Glass Board Markers by Shachihata are perfect for use with all Glass Dry Erase Boards and Whiteboards. These markers provide ultra-vivid colors on any glass surface to make sure your message gets the attention it deserves! Easily erased with a dry-erase eraser or damp cloth. Bullet tip creates thick, broad lines for messages that are clear and easy to read at any distance. Liquid ink delivers bold color. Marker requires you to press the nib down several times to start ink flow.