Funny Girls Bedroom Sign for Door or Wall 12" x 8", Easy to Mount PVC Girls Only Sign, No Trespassing Bedroom Sign, No Boys Allowed Sign. PVC (Polyvinyl Chloride) Is a Smooth, Rigid Plastic Sheet Material Perfect for Indoor and Outdoor Yard Signs Real Estate Signs or a Multitude of Other Advertising Purposes. We Use Only the Highest Quality Materials. Specifically, the Plastic and Colors We Use for Printing Keep Your Sign Strong and Beautiful.