Durable, double-sided, write-on/wipe-off mat allows kids to trace each number from 1 - 100, then practice writing them on their own. The front is for tracing, while the reverse encourages children to write the numbers by themselves. Also includes numbers 1000; 10,000; 100,000; 1,000,000; and 1,000,000,000. Great for use at home, school or even in the car. Use with dry erase crayons or markers, sold separately. Not for use with regular markers or crayons. Use a paper towel or cloth to wipe clean. Can be fully cleaned with disinfecting wipes; or with soap, warm water, and a non-abrasive sponge. Dry completely before re-use. For ages 5 and up.