The DC Batman baby on board has a circular shape and has a suction cup attachment. The sign is for indoor use only but thanks to the use of suction cups you have the possibility to put on and take it off as many times as you want without having any problems afterwards. Ideal for your kids features exclusive DC Comics graphics of the superhero batman Batman. The safety sign is bright yellow/black and allows you to alert car drivers to pay attention to increase safety for your children.