Ideal for home, school, or office use, BIC Intensity Advanced Dry Erase Markers are ACMI-approved and feature bold, low-odor ink. With their liquid ink, these tank-style markers provide smooth, consistent ink flow on dry erase boards, glass, and most non-porous surfaces, and their marks erase easily. These non-toxic whiteboard markers also offer a visible, long-lasting ink supply and come equipped with a chisel tip that lets you create broad and fine lines.