With this advanced learning mat, students will be able to quickly learn world geography! This durable write-on/wipe-off mat provides endless hours of learning and practicing essential skills. Use with dry-erase crayons. Do not use regular crayons or markers. Use a paper towel or cloth to clean dry-erase crayon marks. Mat can be fully cleaned with disinfecting wipes, or with soap, warm water, and a non-abrasive sponge. Dry completely before re-use. 1 Double-sided mat. Measures 17.25" x 11.2". Ages 8 and up.