Markal Silver-Streak and Red-Riter Welders Pencils Markal Silver-Streak and Red-Riter welders pencils make torch- marks that will not burn or rub off like soapstone. Ideal for fine line marking during metal layout and fabrication, these highly visible marks illuminate when cutting or welding. Durable marks will not scratch or abrade metal surfaces. Available in two highly visible colors: red for aluminum or other bright metals, silver for darker surfaces. Pre-sharpened pencils can be easily re-sharpened with any standard pencil sharpener Pack of 12