High-quality aluminum: our surveillance sign is made out of premium materials with high-quality prints and the letter are clear to read, indicating there is 24-hour video surveillance inside. Easy mount: the 6 pack aluminum surveillance sign has 4 pre-drilled holes and easily installed on every surface. No adhesive or special tools needed. Long lasting Graphics: printed with high quality inks that can withstand the outdoor elements and will not fade for years indoor or outdoor use. The warning sign features a reflective material that will glow when struck by lights. Perfect size: this large 7"x10" sign displays a large font and image. Guaranteed quality: high quality, heavy-duty and built to last! Made by excello global products. We are a family owned usa company and we have been making quality products for over 50 years.