OTR .071 Cold Sweat Marker
The OTR .071 Cold Sweat Marker is a valve action marker with a 20mm T-Nib and comes filled hard-to-buff bitumen-based ink.
The bitumen-based ink dries smoothly to a tar black color and the 20mm nib can be exchanged for a standard 15mm.
Easily refillable.
2cansam –
BITUMEN. BITUMEN. BITUMEN. got to have the bitumen ink. Love these markers.