Numbers flash card set. Includes numbers 1-20 Practice writing, counting and spelling numbers. 5” x 7”. All chalkboard mats are: Reusable Double sided (one side printed, the other plain) Easy to erase with a cleaning spray, baby wipe or damp cloth Full color care instructions and UPC code label Can be used with chalk, chalk crayons (ours are great), or chalk markers Can handle "kid" treatment Made in China. Back to School, Chalk Crayon, Marker, Art Supply, Educational Toy, Flash Card, Coloring, Alphabet, Numbers