Quartet High Performance Bullet Tip Dry-Erase Markers, Black, Red, Green, Blue, Set of 4 Markers (5001-1U) High-performance, non-toxic dry-erase markers with quick-drying, high-performance ink ensures clear writing and is easily erasable Communicate boldly with vibrant ink Choose from thick or thin lines with versatile bullet tip Thick barrel and tapered design for lasting style and comfort, even in extended meetings Roll-resistant cap prevents markers from drifting out of sight