The aquadoodle is a great product, it has teached my 4 1/2 year old autistic son the beginning stages of drawing. It's safe. The water pens are really not that great, so we have him put his hand in a bowl of water & just draw with wet fingers. Unfortunatley it does take quite along time to dry, so it's not something you can really use repeatedly through a day. I love the stamps that you can buy as an accessory. Pad also has ABC's & 123's right on it. This is a great space saving solution if you live in a small place. Pad is machine washable if something other than water gets on it. Overall just a GREAT invention.