Pilot Corporation 43921 Whiteboard Marker, Refillable, Medium Bullet Pouch, Ast Sold as 5/PK. Dry-erase marker with bullet tip is made from a high percentage of recycled material and meets ISO 14001 and 14021 Standards. Innovative Twin Pipe Feed system ensures smooth and steady ink flow. Visible, long-lasting ink supply delivers vibrant colors. Vivid, dense writing is clearly visible from a distance. Low-odor marks are easy to remove, and no chemical cleaners are necessary to erase. Refill with Pilot V Board Master refills for continued use.