A high-quality all-purpose marker with a robust tip that is extremely resistant, even when used on rough surfaces. The aluminum housing is strong enough to be clamped in machine tools. The robust and long-lasting Pentel Pen is the perfect choice for all tasks where high performance and reliability are required. The extra fine round nib is ideal for precise marking and writing – whether in the skilled trades or for DIY and hobby projects. The ink is fast drying, waterproof and resistant to many solvents and ideal for use on oily, dusty, wet or dirty surfaces, as well as a wide range of materials including glass, metal, wood and plastic. Blister contains: 4x markers (2x black, 1x red, 1x blue).