We offered this "book-slate" to a girl of 2 years. once she had fun with! (His dad and his mom too) it fits easily in a bag and is easily transported by car to play, or among friends etc ... very durable and easy to clean; there was a shower gel accident above, well after soaking, rinsing and drying in the open air, it is like new! the principle of aquadoodle is simple, pen which fill the water faucet body, a mine and a sponge "slate" in tissues that being wet turns blue ... we draw, and after less a minute (30 seconds may be) that dried and disappeared! and start again!
