Heavy Duty Permanent Markers With Smooth Fine Tips In Bold Black Red Blue And Green Feature A Wide Comfort Grip And Fast Drying Waterproof Ink That Stays Put Through Thick And Thin Solid Everyday Choice For Work Or School

Heavy duty permanent markers for work and school
✔️ 1.5 mm fiber tip, 0.73 inch barrel, quick drying waterproof ink

This four pack of permanent markers brings steady performance to busy warehouses and school offices. The chubby barrel stores extra ink so you can label cartons and tools without constantly swapping pens. Quick drying waterproof formulas grip hard surfaces like plastic totes, metal racks, and plywood sheets without running around.

✅ 0.73 inch (18.5 mm) grip diameter takes the pain out of your fingers after hours of packing
✅ Non toxic pigment blend blocks UV damage while keeping high contrast on dark shipping crates
✅ Flexible fiber nib lays down clean strokes across corrugated cardboard and painted drywall finishes

💡 How do permanent markers tackle stubborn stains on grease coated factory machinery?
- Solvent activated chemistry dissolves light oils to create instant adhesion on uneven metal plates.
- This handy trait keeps hazard signs and part numbers intact even after heavy washdown cycles.
- Controlled viscosity prevents excessive pooling so thick coatings cure uniformly under hot shop lights.

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