gas hsut off valve sign size 7 inch x 10 inch. sign thickness 0.4 mm sign letters color: white sign background color: red sign type: wall mounted. ensure clear visibility and long-lasting performance with our reflective aluminum sign, expertly crafted for homes, offices, and businesses. made from rust-free, waterproof aluminum, this durable sign features high-contrast screen-printed lettering on a black background for easy readability, even from a distance. its reflective surface enhances visibility in low-light conditions, making it ideal for safety, identification, and warning signage. with pre-drilled holes for easy mounting and rounded corners for added safety, installation is quick and secure on any surface. built to withstand harsh weather and simple to maintain, this sign delivers professional-grade functionality