The EXPO Dry-erase Markers Fine Point Nontoxic 4/PK Assorted 86674K are high-quality markers designed for use on non-porous surfaces like glass and acrylic. With vibrant ink that easily erases, these markers are perfect for creating detailed lines and writing that pops on any dry erase board. The fine point tip ensures precise and clear writing, making them ideal for business presentations, project planning, and everyday use in the office. Each pack includes 4 assorted colors to keep your notes organized and easily readable.