The HY KO CHALK MARKER is a water-based, fast-drying marker designed for safety signs and traffic control in a variety of settings. With its non-toxic formula, this marker is safe for use in various commercial and industrial applications. The 2 pack ensures you have an ample supply for your needs. Made by the trusted brand Hy-Ko and manufactured in China, this chalk marker is a reliable and effective tool for maintaining safety and visibility in your workspace or facility.