A marker for the most demanding environments This fine-tipped, permanent pen writes on virtually all surfaces without damaging them. That makes it a perfect match for highly sensitive industrial environments, like the aerospace industry. The ink is lightfast, waterproof, and quick-drying. edding Aerospace Marker 8404 has an 0.75 mm rounded porous point and comes with black ink. Sold individually. Made in Germany. More about edding Since 1960, when founders Carl-Wilhelm Edding and Volker Detlef Ledermann introduced their edding #1 permanent marker, the name edding has meant high-quality marking pens. By 1970, the company had already sold 100 million markers, and by 1980, edding markers were the most popular in their category in several European countries. Today's edding has created many new products for industry, high-tech, and science, all of which rely on accurate and permanent marking for their important workflows. At the same time, they've introduced fun and universal items for artists and schools. If it needs marking, edding probably has a solution!