Milwaukee INKZALL Permanent Marker with Stylus 1mm Fine Point BlackStays sharp, doesn't mushroom or push back under pressureAcrylic nib ideal for rough surfaces such as OSB and concreteMarker continues to write after 72 hours of cap off timeFor use with gloves on iPads, iPhones, tablets, and touch phonesFor use on concrete, wood, metal, plywood, OSB, plasticCan be used on wet, oily, dusty, rusty, with debris surfacesQuick dry time ?Çô reduced smearing markings on PVC, metal surfacesThin body for use in restricted areasHelmet clip ?Çô can be clipped to the construction site cap, trousers, overallsEasy open cap for one hand operationLanyard Hole, e.g. to attach the pen to the touch screen deviceAnti-Roll design - won't roll off surfacesColour: BlackTip: 1 mm