Fill the aquadoodle pen with water run the nib over the matt and see your drawings appear like magic the padded bag provides you with an easel with two drawing areas for double the fun create your doodle on one side then switch to the other while your masterpiece dries once the water has dried drawings fade away ready to start all over again aquadoodles frozen doodle bag is the perfect solution for keeping kids entertained on the go with none of the mess you normally associate with pain