Description :
 Milwaukee Inkzall® 48-22-3102 Medium Point Permanent Jobsite Markers provide a durable and effective solution for writing on rough surfaces such as concrete, wood, or dusty, wet or oily surfaces. With fast-drying, non-toxic ink, these markers are ideal for demanding work environments. They include a built-in hard hat clip and anti-roll design for convenient use. This product is also available in stores.