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. Delivers both low odor and bold writing. Bright vivid colors. Visible ink supply level always lets you know when you're running low. Provides smooth, consistent ink flow. Chisel tip for bold writing. Long lasting ink supply. Age: 12+ years/Grade 7-12