Create permanent & accurate marks on virtually any surface with uni Paint oil-based paint markers from uni-ball. These markers deliver strong & clearly visible lines. Quick-drying paint is water, fade, heat & abrasion resistant. Valve action control provides excellent flow & coverage, while also preventing the marker from drying out if left uncapped. Permanent paint colors mark opaque & glossy on both light & dark surfaces, no matter what it is applied to. The metal barrel & durable tip ensures a long marking life. Ideal for manufacturing, construction sites, automotive, metal fabrication, aviation, marking oily, greasy items & identifying parts or equipment outside. Marker Ink Type: Permanent; Marker Tip Type: Bullet; Marker Tip Size (text): Medium; Marker Color(s): Black.