DURABLE: Property Under Video Surveillance Signs are made from 120 mil thick ACM (Aluminum Composite Material) that has a thick aluminum outer layer and durable plastic core. These MADE IN USA signs easily last for 7+ years, indoors and outdoors. EASY INSTALLATION: All signs have rounded corners and come with pre-punched and pre-cleared mounting holes for easy installation. Signs mount to U-channel posts, square or round galvanized posts, wooden posts, and chain-link fences. UV OVERCOAT: Each sign has a clear UV resistant overcoat for enhanced durability, and chemical, weather and graffiti resistance. MADE IN USA: With a 100-year legacy, our signs are proudly crafted in the USA using durable and top-quality components that undergo meticulous quality checks. PACK CONTENTS: Pack of two 18 x 24 inch red, black and white aluminum sign. SmartSign 2-Pack Property Under 24 Hour Video Surveillance Warning Sign - 18" x 24", 120 mil Aluminum Composite (ACM) with Overcoat, Red, Black and White, Made in USA