Lockable art doodle pad includes a 30-page sketchpad for drawing, doodling and dreaming Use the included invisible ink marker to add hidden details to your creations, then reveal what you've drawn with the attached light Set a passcode to lock your doodle pad with all your drawings and doodles inside Play five games like Let's Roll, Memory Chain or Lucky Number, in solo mode or with a friend; practice math skills and memory skills with music notes Intended for ages 6+ years