Fine Tip Black Permanent Markers feature durable tips that create clear, long-lasting lines for marking and labeling jobsite materials. Resists clogging and crafted with professional grade ink that writes effortlessly in the toughest conditions: wet, dry, oily, on abrasive surfaces. The 72-Hour extended cap-off life prevents the marker from drying out. The anti-roll triangular shape and integrated hard hat clip keeps the writing utensil accessible and within reach on the job