The Pentel Maxiflo Pump-It Whiteboard Marker in Black (MWL5S) features a 4.0mm bullet tip for bold, precise lines on whiteboards, porcelain boards, and electronic copy boards. Its unique pump-action system rejuvenates ink flow, preventing dry-out for up to 8 hours and ensuring long-lasting performance. The xylene-free, low-odor, pigment-based ink is vibrant, water-resistant, and easily erased with a dry cloth or eraser. Made with 50% recycled materials, this eco-friendly marker is ideal for classrooms, offices, or high-use environments.