Blue Parking Permit for, WindowCling Repositionable Label (Front Stick), 50 Decals/pack, 3" x 2" You can designate the blank space to assign an ID number, write in the license plate, and more! Every bold blue parking decal clings to the inside of the car's window. All decals can be effortlessly removed without messy solvents or tools. Simple design includes a blank space to fill in numbers with a permanent marker.