High-quality Swiss refills with superior performance to render your workflow flawless.
Full line, no skips, rich color. It just smoothly slides on the paper.
The package contains 4 blue 0.5mm color refills.
Quality tested according to international standards ISO 27668-1.
Refill durability is 800m; with both refills the pen lasts 1,600m (the standard pen lasts the average of 1,000m)
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