Newborn Baby on Board Car Flag. Be a proud parent and display your flag on your car telling everyone that you just had a newborn! We thought of the idea when we got these made for our newborn son. We decided to let other parents show that they too are proud parents. A great gift for new parents as well Comes with a plastic pole that attaches to your window. No tools needed. Put the flag pole slot between your car window and door frame and roll up the window. 1 Flag Per Order Only. Flag is made out of Polyester attached to a plastic pole. Flag is 1 sided only. Color: a light blue gray Size: 17 inches x 11 inches