The Professional Marker Pen 4 Pack is a versatile and reliable marking solution built for demanding job site conditions. Whether you're working in wet, greasy, or gritty environments, these markers deliver clean, clear, and permanent marks across a wide variety of surfaces. The quick-drying, waterproof ink and premium acrylic nibs make these pens an essential addition to any tradesperson's toolkit, while the four-colour pack ensures you always have the right colour to hand for coding, labelling, and marking applications. Key Features Quick-drying ink that dries within 5 seconds on most surfaces, eliminating smudging and saving time on the job Waterproof formula suitable for use in wet, greasy, and gritty conditions 1mm fine bullet nib for precise, clean markings and detailed work Premium quality acrylic nib — non-toxic, low odour, and job site ready Permanent, indelible ink for long-lasting marks, suitable for both permanent and semi-permanent applications across a wide variety of surfaces Pack of 4 colours for versatile colour-coding, labelling, and identification Specifications Nib Type: 1mm Bullet Nib Nib Material: Premium acrylic Ink Type: Permanent/indelible, waterproof Drying Time: Within 5 seconds on most surfaces Colours Included: Black, Red, Green, Blue Pack Quantity: 4 markers Toxicity: Non-toxic, low odour