Industrial Markers, Industrial Marker, Permanent, Marking Tool Base Material Ink, Marking Tool Color Family Reds, Marking Tool Tip Size Group Medium, Min. Temp. -20 Degrees F, Max. Temp. 150 Degrees F, Series HIGH PURITY 44, Marking Tool Surface Material Metal, Marking Tool Tip Shape Bullet, Tip Size Medium, Features High Purity Paint, Pocket Clip Design, Use for Welding, Aircraft Industries, Marine Industries, Power Plants, Automotive Plants and Oil, Natural Gas Refineries