Markal HT Paintstik Solid Paint Markers Red-hot surface marking crayon writes on billets, coils, bars, slabs, ingots, and other hot metal surfaces. Durable marks will not run, char, flow, discolor, peel, or crack. Fast-drying marks are not damaged during handling or when immersed in cold water baths. Real paint for long-lasting, highly visible marks. Available in two sizes- 3/8 inch (standard) and 3/4 inch (king) Pack of 144