Staedtler Medium 0.5mm Blue & Black Stick Pens Mixed PK100 Extremely long-lasting ink. Ink flow has been regulated to avoid blobbing or scratching. Ventilated caps in accordance with ISO 11540. No toxic heavy metals such as cadmium or lead-based colouring agents are used for the colouring of plastic. STAEDTLER does not use xylene and toluene as ink ingredients. Environmentally friendly manufacturing process. Mixed pack of Black and Blue.
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