The permanent marker whiteboard surface. The Flex Write Surface gives you the flexibility to instantly transform your work surface into a whiteboard and the freedom to write with even a permanent marker without stains. The Flex Write Surface is available in multiple sizes for both consumer and professional installation. No lingering smell, multi-day cure time, or potential for bumpy writing surface that you would have with dry erase paint. Use either dry erase or even permanent markers to prevent accidental smearing and erasing. Both are removable with water. No harsh chemicals needed. Since this a Post-it® brand, the surface sticks securely and can be removed cleanly without damage to walls. Sold per roll. 3-year Warranty.