DO NOT BLOCK GARAGE DOOR Tow Zone – Red and Black on White Background -This is an aluminum sign measuring 12" wide x 8" high x .032" in thickness with 2 mounting holes centered on the 8” sides for an easy installation. This sign is made with 100% American made products right here in the USA! The color is baked right into the metal for a smooth and durable finish that is UV protected for a long service life.