It's a poster, it's a placemat, it's both! Smart Poly material has been designed for the classroom and home. The material is strong, durable, water resistant, and does not need lamination. Heavy duty surface for fun and colorful learnings. Write-on/wipe-off surface for use with dry erase or water based markers and washable crayons. Measures 13"" x 9.5"". Great for taking notes, leaving messages, making plans, etc. Multi-use for home, office and classroom.- Durable, all poly material, heavyweight charts.- Use with dry erase or water based markers and washable crayons. Write-on/ wipe-off surface.- Water resistant, no lamination required.- 13"" x 9.5"".- Sold as 1 Each..