I bought this Aqua Doodle Puzzle Mat for my grandchildren. I wanted an activity toy for them that was not messy and something they could learn from as well as play with. It comes with two magic pens that you simply fill with tap water. Push the pen down on the mat and you will see it show up and then slowly disappear. I really like this product because the children learn the different shapes by taking the shape out of the border and drawing around it on the mat. This gives them an idea of how to make the shape. There are other forms that they use to make pictures too. This mat is also a puzzle. I watched as they put the pieces together. I like that you can make different things with the puzzle pieces too like a box, a triangle or whatever their imagination brings them. I would highly recommend this Aqua Doodle Mat for hours of fun family time.