The Class Set of 30 includes 30 Write-on/Wipe-Off maps. World Write-on/Write-off Desk Mat - States Map is a powerful educational resource that allows teachers and students to use over and over. World Write-on/Write-off Desk Mat - World Map is 11 inches x 17 inches. One side is in color and has the label each country activity. The other side is black and white and has various activities. The map also helps students to understand relative location, state regions, borders, physical features and more! In addition, there are several activities including fill-in-the-blanks, city grid locations, map scales, map key and compass rose. Use a dry-erase pen to wipe clean to use again and again.