Red gets noticed. That's the point. You're flagging a batch, marking a 'do-not-ship' unit, or writing a temp note on a metal panel and you need it to pop without committing. These Staedtler non-permanent dry marking pencils lay down a bold red line on glass, metal, wood, leather, stone, plastic and paper. Wipe it off when the job's done. Light fast and waterproof, so your mark stays sharp until you decide to erase it. Round barrel, no fiddly caps, just pick one up and write. Box of 12 means the whole desk has a red pencil for the next month