Rich, vibrant colors ensure that everyone can see what you're communicating. Smooth, skip-free lay down makes marking easy, keeping each line consistent and even. Instant-dry ink erases easily from all dry-erase surfaces: melamine, ceramic, glass, etc. Low-odor formula is ideal for classrooms, enclosed collaboration spaces and home offices. Marker Ink Type: Dry Erase; Marker Tip Type: Bullet; Marker Tip Size (text): Medium; Marker Color(s): Black.