This high-precision fineliner is designed for writing, sketching, and technical drawing where accuracy really matters. Its long metal tip makes it perfect for use with rulers and templates, allowing clean, controlled lines even at very fine widths. The pigment-based ink is indelible, lightfast, and waterproof on paper, while remaining erasable on drafting paper and resistant to bleeding under highlighters (black ink). Thanks to DRY SAFE technology, the pen can be left uncapped for extended periods without drying out, and the durable PP barrel ensures a long service life. With airplane-safe pressure equalisation built in, it's a reliable choice both at the desk and on the move.