The Milwaukee's INKZALL Black Fine Tip Permanent Marker Pen is the ideal marker for all jobsites. The durable marker tips are designed for writing on rough surfaces such as OSB, cinder block and concrete no matter if the surface is dusty, wet or oily. Featuring clog resistant tips with ink that dries quickly to reduce smearing markings and without drying out quickly when the cap is left off. This permanent marker has a stylus tip for touch screen use when wearing gloves. For added user convenience, the INKZALL marker has a built-in hard hat clip for easy storage and access. Features and BenefitsFine PointSuitable for writing on concrete, OSB and rough surfacesNon-Toxic InkWrites through Wet, Oily and Dusty surfacesQuick drying inkAnti-Roll body designLanyard HoleStylus Tip for touch screen use