Window Decal. Baby on Board no more These Window Decals are the hottest new product around. These one-way vision film are easy to apply and can be placed on ANY piece of glass. Cars, trucks, dorm rooms, businesses, homes, you name it. If you've got glass, we've got the window decal for you Perforated vinyl window graphics (Not a sticker or window cling). Quick and easy installation. Professional grade material. One-way vision technology. Easy outside installation - pressure sensitive adhesive allows dry application. No MESSY water, yet car wash safe. Size 11 12"(W), 9 14"(H). 2 year warranty against fading, cracking, and peeling.