IRWIN Strait-Line Permanent Marking Chalk is suitable for use on a variety of surfaces including wood, plasterboard, concrete, stone, and metal. Permanent colours produce long lasting lines that won’t fade and reduces the need for additional sealant.
-For use on a variety of surfaces including wood, plasterboard, concrete, stone, and metal
-Easy to open flip-top cap
-Permanent colours produce long lasting lines that won’t fade