The Faber-Castell TK-Fine Vario L 0.5mm indigo blue mechanical pencil (ref. 135542) is the ultimate technical writing tool, presented in a distinctive indigo blue finish. Designed for 0.5 mm fine leads, it features adjustable lead suspension technology to prevent breakage during intensive use. Its rotating hardness indicator allows for quick identification of loaded graphite, while the helical eraser ensures clean corrections. This indigo blue version combines tradition and modern functionality for students and designers.