Our arrow-shaped Fire Department Connection Signs are available in sturdy aluminum that is highly durable outdoors and quickly provides direction towards the nearest FDC. The left and right arrow signs (horizontal) are available in two sizes - 6 x 18 inches and 9 x 27-inches. The smaller arrow signs are constructed from 63 mil thick aluminum, while the larger ones are 80 mil thick aluminum. You can choose a grade of reflectivity from Engineer Grade (basic), High Intensity (medium), and Diamond Grade (high, angular reflectivity), or opt for a non-reflective version. We also have a vertical arrow-shaped FDC sign that measures 6-inches x 24-inches and is made of 80 mil thick aluminum with 3M inks and reflective films.