The color of flag of the country can be changed around the pen as per coustomer's requirement. Maybe some people think it's main function is for writing, but our major aim is comfortable to many people by the National Anthem. You know, many people have to left self country and went to strange place for making living or coming true dreaming, but anyway, we shouldn't forget where we from. Though, it's one simple pen, but it can be comfotable to us.
Not only it can write word, also let you share the music from self national, when you stay else country alone.