Smart Poly™ material has been designed for the classroom and home. The material is strong, durable, water resistant, and does not need lamination. Practice learning world geography with the World Physical Map learning mat. Label countries and bodies of water. Heavy duty double-sided surface for fun and colorful learning on both sides. Write-on/wipe-off surface. Use with dry erase or water based markers and washable crayons. Each side is an interactive lesson. Mat measures 12" x 17".