- Pentel Maxiflo markers designed for whiteboards and porcelain boards - Fine slanted tip that allows for precise and clear writing - Maxiflo pump action system to replenish ink supply and prevent drying out - Black liquid ink, easy to dry erase without leaving residue - Approximate line width of 1.1 mm, ideal for presentations and visible notes - Pack of 12 units, perfect for intensive use in offices, classrooms, and meetings - Long lifespan: lasts up to three times longer than conventional dry erase markers - Product from Pentel, a leading brand in writing instruments and office supplies