Pens are optimized for jobsite conditions and deliver sharp, precise lines. Durable ultra fine point tip marks a 0.5mm line for precise writing and labeling. Bleed and smear resistant ink dries quickly. 72 hour cap-off life delivers extended performance and use. Integrated pocket clip enables easy carry and storage. ASTM D 4236 certified ink. No. 48-22-3164: Point Size: Ultra Fine Point, Ink Color: Black, Pkg Qty: 4, Package Type: Hang Tag No. 48-22-3160: Point Size: Ultra Fine Point, Ink Color: Black, Pkg Qty: 12, Package Type: Hang Tag No. 48-22-3165: Point Size: Ultra Fine Point, Ink Color: Black, Blue, Red, Pkg Qty: 4, Package Type: Hang Tag