Markal H Paintstik Solid Markers Hot surface marker writes on hot castings, forgings, coils, billets, plates, and other hot metal surfaces. Fast-drying marks are permanent and will not run, char, flow, discolor, peel, or crack. Forgings and parts can be immediately dipped into cold water baths without damaging the marks. Real paint for long-lasting, highly visible marks. Can be removed in pickling baths Pack of 144 WARNING: Cancer - www.P65Warnings.ca.gov - Titanium dioxide (airborne, unbound particles of respirable size)