The UNI PWE-5M 2.5MM LIGHT BLUE 12 liquid chalk marker ensures smooth and eye-catching writing on non-porous surfaces such as windows and menu boards. With a medium 2.5 mm tip, it allows for easy, defined lines and creative designs. The opaque light blue ink offers a fresh and modern tone that stands out against dark backgrounds or illuminated glass. Removal is quick and easy; simply wipe with a damp sponge or cloth. An excellent tool for decorating events, shop windows, and temporary signage.