TRADE QUALITY - An all-purpose 1-3mm bullet point marker specifically designed to be the ideal heavy duty marker for construction sites and busy workspaces. HIGH VISIBILITY - TRACER Construction Paint Markers utilise vibrant high visibility ink which is ideal for darker surfaces and those such as glass/porcelain. DURABLE AND RELIABLE - Understanding the wear and tear inevitable from excessive use onsite, the marker has been constructed with a durable acrylic tip (xylene and toluene free). HEAVY DUTY - Built with a tough metal barrel with a valve action ink mechanism, the TRACER Construction Paint Markers Marker is perfectly resistant to breakages and built to last. VERSATILE MARKING - All TRACER TRACER Construction Paint Markers are ideal when needing to mark on tiles, plastic, wood, and metal surfaces.