Question: What the doodle mat is?
Answer: The doodle mat is made of non-woven fabric and polyester fibers, it's for the kids who start learning drawing to draw on with water pen, no crayon required, so will keep your room and kids clean.
Question: Are the water pens reusable?
Answer: Yes the water pens are reusable, once the water inside run out just fill water in again.
Question: How long will the drawing get disappear?
Answer: It depends on the temperature, normally disappear in 3 to 10 minutes.