Victorinox Retractable ballpoint pen, small model

A practical, easy-to-replace part for your pocket knife
Blue ink pen, made in Suisse
Be prepared for all eventualities by maintaining the tools on your pocket knife. You can replace your accessories to ensure that everything you need is in perfect working order at all times. Take the small spare pen, for example. When you run out of ink, simply replace the old pen with a new one and you're ready to sign documents, note dimensions or take notes again, wherever you are.