The Milwaukee Inkzall XL Chisel Tip Marker is designed for durability and versatility. It provides 72+ hours of cap-off time and can write on a variety of challenging surfaces including concrete, wood, metal, plywood, OSB, and plastic. This marker is suitable for use on wet, oily, dusty, or rusty surfaces, as well as those with debris. The ink dries quickly to minimize smearing, and the clog-resistant chisel tip stays sharp even on rough surfaces. Its larger tip size makes marks easier to read from a distance. The marker also features a built-in hard hat clip for convenient storage and access. Specifications include a black color and a 14.5mm tip size.