3 years & up. Diversify your dry-erase boards with Washable, Dry-Erase Crayons from Crayola®. Crayons have helped children craft masterpieces for over a century, and they will continue to do so on dry-erase boards. Children can now use both markers and crayons to take dry-erase creations to the next level. The best part is that they will wipe off just like a marker!