The Chevron Alignment sign (W1-8) is typically used to provide additional emphasis and guidance for a change in horizontal alignment. A Chevron sign may be used as an alternate or supplement to standard delineators on curves. Engineer grade reflective vinyl on .080 aluminum. Sign will never rust, is reflective, normally lasts 7 or more years, and able to withstand harsh weather conditions. Also offered in diamond grade prismatic green which produces the greatest visibility. High quality, long lasting, and trouble free.